Top 27 Mil-Spec Fastener Questions & Expert Answers on AN, MS, NAS & MIL-STD Hardware Frequently Asked Questions About Military Standard (MIL-STD) Hardware (Part 4 of 4)
Posted: April 24, 2026 Filed under: DFARS, Domestic Fasteners, Mil-Spec Fasteners | Tags: DFARS Compliant, Domestic Fasteners, Mil-spec, Mil-spec fasteners, Mil-Spec Fasteners Availability, Mil-Spec Fasteners Cross-Reference, Mil-Spec Fasteners Distributor, Mil-Spec Fasteners Lead Time, Mil-Spec Fasteners Supplier, Mil-STD, Sourcing Mil-Spec Fasteners Leave a comment
Welcome back to our 4-part series on Mil-Spec Fastener Questions and Expert Answers. In Part 3, we shifted from compliance paperwork to sourcing and selection strategy. We covered where to find Mil-Spec fastener lists, catalogs, and specifications; what types of MIL-STD hardware are commonly available; which materials frequently appear in Mil-Spec supply chains; and when a commercial or OEM functional equivalent may or may not be appropriate. We also addressed how to cross-reference a Mil-Spec part number to possible OEM or commercial equivalents while keeping form, fit, function and documentation requirements in view.
In this fourth and final installment, we close the series by covering how to cross-reference a commercial or OEM part to a Mil-Spec fastener, what typical lead times look like for common and hard-to-source items, whether Mil-Spec fasteners can be purchased in small quantities, which industries commonly rely on MIL-STD hardware, what finishes and platings are typically available, and what steps should be taken if a Mil-Spec fastener fails inspection.
Part 4 – How to Cross-Reference Commercial Parts to Mil-Spec, What Lead Times Look Like, and What to Do When Parts Fail Inspection
22. How do I cross-reference a commercial or OEM part to a Mil-Spec fastener?
Use our cross-reference charts and explore known equivalent options. Not all commercial or OEM parts have a true Mil-Spec equivalent. Provide the description including the size, dimensions, material, known attributes and any special features, and we can help identify if a Mil-spec option is available.
23. What’s the typical lead time for Mil-Spec fasteners?
Common Mil-Spec fasteners may be available off-the-shelf and may ship same day. Non-common sizes and materials may have extended lead times of 50 weeks or more. Special materials such as A286 and products with limited demand, few manufacturers or a small supplier base may take a year or more to procure. Contact us for real-time availability.
24. Can I buy Mil-Spec fasteners in small quantities?
Yes! We cater to both small-batch buyers and large production runs. Minimum order quantities may vary by part, and some inexpensive parts may only be purchased in box quantities.
25. What industries use Mil-Spec fasteners?
MIL-STD hardware is widely used in the manufacture of aerospace, defense and military equipment. Typical applications include aircraft, machines, weapons, instruments, and systems manufactured for the Department of Defense (DoD). Some common uses include:
- Aircraft
- Drones
- Land Vehicles
- Satellites
- Ships
- Submarines
- Weapon Systems
26. What finishes or platings are available for Mil-Spec fasteners?
Common finishes/platings include:
- Black oxide
- Cadmium
- Passivated stainless steel
- Zinc
27. What happens if a Mil-Spec fastener fails inspection?
Failed parts should be quarantined and reported immediately. If supplied by MF Supply, we will issue an RMA and provide replacements or a refund per our quality and compliance guarantee.
Lessons learned: Mil-Spec cross-referencing, lead times, finishes, quantities, and inspection response
In Mil-Spec fastener sourcing, the challenge is not just finding a part number, it’s making sure the part is acceptable for the application, available within the required timeline, and supported by the quality and paperwork requirements that come with the job.
Buyers need to know that not every commercial or OEM fastener has a Mil-Spec equivalent, that lead times can vary drastically depending on material and availability, and that even small-quantity purchases may come with ordering constraints. The most successful buys happen when requirements are defined early, alternates are reviewed carefully, and all compliance and paperwork requirements are determined and checked at quoting, receiving and inspection. In short, it takes a village.
Key takeaways:
- Cross-reference carefully: A similar commercial or OEM part is not automatically a valid Mil-Spec alternative (and vice-versa).
- Plan for real lead times: Availability depends on how common the size, material, and configuration are.
- Check quantity requirements before ordering: Small runs may be supported, but not every item is available one piece at a time.
- Confirm finish requirements upfront: The right plating or finish can be just as important as the base part itself.
- Control nonconforming product immediately: Quarantine and escalation should happen at receiving, if possible, or as soon as inspection reveals a problem.
With this final installment, our 4-part series comes full circle. From standards and documentation to sourcing, equivalents, lead times, finishes, and inspection response, the goal has been to help buyers make more informed Mil-Spec fastener decisions with fewer surprises along the way.
If you need help identifying the right Mil-Spec part, validating an equivalent, or sourcing hard-to-find hardware, MF Supply is here to help you find the right solution. Feel free to connect with our team or send us a request for a quote below and our team of sourcing experts will help you find what you need. “Finding the right screw for you” is our tag line after all!
Related:
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 1 (Blog)
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 2 (Blog)
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 3 (Blog)
- Buyer’s Guide to Mil-Spec Fasteners
- Mil-Spec DFARS!? What the heck is that?
- Mil-Spec Fasteners Guide: Frequently Asked Questions
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Top 27 Mil-Spec Fastener Questions & Expert Answers on AN, MS, NAS & MIL-STD Hardware Frequently Asked Questions About Military Standard (MIL-STD) Hardware (Part 3 of 4)
Posted: March 30, 2026 Filed under: DFARS, Domestic Fasteners, Mil-Spec Fasteners | Tags: DFARS Compliant, Domestic Fasteners, Mil-spec, Mil-spec fasteners, Mil-Spec Fasteners Cross-Reference, Mil-Spec Fasteners Distributor, Mil-Spec Fasteners Supplier, Mil-STD, Sourcing Mil-Spec Fasteners 1 Comment
Welcome back to our 4-part series on Mil-Spec Fastener Questions and Expert Answers. In part two, we covered Mil-spec fasteners compliance, certifications, and documentation. We also covered what DFARS compliance means, which materials fall under specialty metals rules, what paperwork may be required beyond a standard Certificate of Conformance, how to interpret Mil-Spec part numbers, and where to obtain official prints and supporting documentation.
In this third installment, we shift from compliance paperwork to sourcing and selection strategy. We’ll cover where to find Mil-Spec fastener lists, catalogs, and specifications; what types of MIL-STD hardware are commonly available, from screws, washers, nuts, and pins to inserts, retaining rings, and more; and which base materials frequently appear in Mil-Spec supply chains. We’ll also address one of the most practical sourcing questions buyers face: when a commercial or OEM functional equivalent may be considered, what tradeoffs can come with that decision, and how to cross-reference a Mil-Spec part number to possible equivalents while keeping form, fit, function, traceability, and documentation requirements in view.
Part 3 – Where to Find Mil-Spec Fasteners, What’s Available, and How to Cross-Reference Equivalents
15. Where can I find a list of Mil-spec fasteners and specs?
The Defense Logistics Agency (DLA) is a great resource. They maintain a comprehensive database of specifications and drawings. They also maintain a catalog of hardware that includes National Item Identification Numbers (NIIN) and National Stock Numbers (NSN) that are sometimes called out in a bill of materials. Check out the following links for more comprehensive information regarding hardware:
- View catalogs of Mil-Spec parts and specs by category
- Look up / Search a specific Mil-Spec part
- Check out MF Supply’s Mil-Spec fasteners in stock
- Download MF Supply’s Mil-spec line card
- Check out the AIA for NAS parts
16. What types of Mil-Spec fasteners are available?
Thousands and thousands of mil-spec fasteners exist. At MF Supply, we supply a full range of Mil-Spec/MIL-STD fasteners, including:
- Chisel Point Cotter Pins : MS9245.
- Dowel Pins : M21143, MS16555, and MS16556.
- Hex Head Cap Screws : MS35307, MS35308, MS90725, and MS90726.
- Helical Inserts : MA3279, MA3329, MS121, MS122, MS124, and MS21209.
- Keensert-Style Threaded Inserts :MS51830, MS51830A, MS51830CA, MS51831, MS51831A, MS51831CA, MS51832, MS51832A, MS51832CA, NA0146, NA0147, NA0148, NA0149, NA0150, NA0151, NAS1394, and NAS1395.
- Nuts : MS17830, MS35649, MS35650, MS51967, MS51967B, MS51967C, MS51971, MS51972, NAS17830, NAS662C, NAS671, and NAS671C.
- Machine Screws : AN500AD, AN501AD, AN526C, MS24693, MS24693C, MS35190, MS35191, MS35206, MS35207, MS35265, MS35266, MS35275, MS35276, MS51957, MS51958, MS51959, MS51960, NAS1635, NAS1801, and NAS662C.
- Retaining Rings : MS16624 and MS16625.
- Self-Tapping Screws & Drive Screws : MS51861, MS51861C and MS21318.
- Shoulder Screws : MS51575 and MS51576.
- Socket Head Cap Screws/Bolts : MS16995, MS16996, MS16997, MS16998, MS51576, NAS1351C, NAS1352C, NAS1351N, NAS1352N, and MS24671.
- Socket Set Screws : AN565, NAS1081, MS180, MS213, MS510, MS514, and MS519.
- Slotted Spring Pins : MS16562.
- Standoffs and Spacers: NAS42, NAS43, NAS61, NAS1056, NAS1057, NAS1829, NAS1831, NAS1831, NAS61.
- Washers : AN960, AN960-C, AN960-CL, AN960-L, AN970, MS15795, MS27183, NAS1149, NAS620, MS35333, MS35335, MS35338, and MS51848.
- Can’t find the product you’re looking for? Contact us for more!
17. What materials are Mil-Spec fasteners made from?
Mil-Spec fasteners are available in a wide variety of materials and platings. Common materials include:
- Carbon Steel
- Stainless steel (302, 304, 316, 400 Series, A286)
- Alloy steel
- Inconel
- Monel
- Brass
Material, plating and finish requirements are usually defined in the part specification.
18. How do I know if the metal meets DFARS requirements?
Only specialty metals are DFARS eligible. DFARS-compliant parts must come with documentation stating the country of melting and manufacturing.
If you haven’t already, check out the second installment of this series, where questions 9 and 10 explore DFARS and specialty metals in greater detail, including which materials are subject to DFARS requirements.
19. Can I use a commercial equivalent instead of a Mil-Spec fastener?
Because some Mil-Spec fasteners may not be available off the shelf and may involve a long lead time, some manufacturers substitute commercial or OEM brand name fasteners for Mil-Spec parts. Proceed with caution when using functional equivalents for Mil-Spec fasteners and make sure to first get approval from your engineering or quality team. Functional equivalent commercial versions of MIL-STD fasteners may not have full traceability or certification and may not have passed the rigorous testing required of Mil-spec hardware.
20. What is a “functional equivalent” fastener?
A functional equivalent fastener matches the form, fit, and function of a Mil-Spec or OEM branded part but may not be manufactured to the same certifying standard or with the certified paperwork available with Mil-Spec hardware. These are often used for commercial or non-critical applications.
21. How do I cross-reference a Mil-Spec fastener to a commercial or OEM part?
Start by referring to our cross-reference charts via the link below. Alternatively, provide us with the Mil-Spec number, size, material, any special features, and we’ll identify equivalent options from brands like Holo-Krome, PIC-Design, Alcoa or others.
Lessons learned: Mil-Spec fastener sourcing, hardware types, materials, and equivalents.
Mil-Spec sourcing isn’t just about finding the right part numbers; it’s about aligning specifications, material, availability, and documentation upfront, so you avoid delays, compliance gaps, and last-minute surprises.
Buyers need to know where to locate reliable specifications and catalogs, understand which hardware is actually available under Mil-Spec systems, recognize the common material options used in military supply chains, and carefully evaluate whether a commercial or OEM functional equivalent is appropriate or risky.
Key takeaways:
- Validate the hardware type: Similar-looking parts numbers (NAS1805 a nut vs. NAS8105 a screw) across hardware categories are not interchangeable.
- Availability drives decisions: Many Mil-Spec parts are not stocked; lead times and minimums can dictate your options. Plan accordingly.
- Use cross-referencing strategically: The right equivalent can reduce cost and lead time without sacrificing performance, if done correctly.
- Define paperwork requirements upfront: If certifications like Manufacturer’s Certificate of Conformance, Material Test Reports, Plating Test Reports or DFARS aren’t requested at quote/PO, don’t expect them later.
Next up (Part 4): In our next and final installment, part four, we’ll round out the series with reverse cross-referencing (commercial/OEM to Mil-Spec), realistic lead times (including long-lead materials), buying in small quantities, common finishes, and what to do when parts fail inspection.
In the meantime, if you have any questions, feel free to connect with our team or send us a request for a quote and our team of sourcing experts will help you find what you need. “Finding the right screw for you” is our tag line after all!
Related:
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 1 (Blog)
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 2 (Blog)
- Buyer’s Guide to Mil-Spec Fasteners
- Mil-Spec DFARS!? What the heck is that?
- Mil-Spec Fasteners Guide: Frequently Asked Questions
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Top 27 Mil-Spec Fastener Questions & Expert Answers on AN, MS, NAS & MIL-STD Hardware Frequently Asked Questions About Military Standard (MIL-STD) Hardware (Part 2 of 4)
Posted: February 24, 2026 Filed under: DFARS, Domestic Fasteners, Mil-Spec Fasteners | Tags: Certificate of conformance, COC, DFARS Compliant, Domestic Fasteners, Mil-spec, Mil-spec fasteners, Mil-Spec Fasteners Cross-Reference, Mil-Spec Fasteners Distributor, Mil-Spec Fasteners Supplier 2 Comments
Welcome back to our 4-part series on Mil-Spec Fastener Questions and Expert Answers. In part one, we covered what makes a fastener truly Mil-Spec. In Part 2, we focus on Mil-spec fastener compliance, certifications, and documentation.
In this installment, we break down DFARS and specialty metals, qualifying countries, certification and COC requirements. We also cover when additional documentation must be requested, how to interpret Mil-Spec part numbers, and where to obtain official prints and supporting documentation, the practical checkpoints in the life of a Mil-Spec fastener.
Part 2 – DFARS Specialty Metals, COCs/MTRs & Compliance Paperwork
8. What does DFARS compliance mean?
DFARS (Defense Federal Acquisition Regulation Supplement) compliance means that the specialty metals used in the fasteners are sourced and manufactured from approved countries. DFARS is often required for Defense Department related contracts.
9. What materials are DFARS-eligible?
DFARS only pertains to fasteners made from “specialty metals” including stainless steel, high alloy steel, like Grade-BD, or Grade 5 Chromium steel with high chromium content. “Specialty metals” means:
- Steel:
- With a maximum alloy content exceeding one or more of the following limits:
- 1.65% Manganese
- 0.60% Silicon
- 0.60% Copper
- With a maximum alloy content exceeding one or more of the following limits:
- Metal alloys consisting of:
- Containing more than 0.25% of any of the following elements:
- Aluminum
- Chromium
- Cobalt
- Molybdenum
- Nickel
- Niobium (Columbium)
- Titanium
- Tungsten
- Vanadium
- Containing more than 0.25% of any of the following elements:
- Titanium and titanium alloys
- Nickel or iron-nickel alloys that contain a total of alloying metals other than nickel and iron in excess of 10%.
- Cobalt alloys that contain a total of alloying metals other than cobalt and iron in excess of 10%.
- Zirconium and zirconium alloys
“Steel” means an iron alloy that includes between .02 and 2 percent carbon and may include other elements.
Restriction: Except as provided in paragraph (c) of this clause, any specialty metals incorporated in items delivered under this contract shall be melted or produced in the United States, its outlying areas, or a qualifying country.
10. More about DFARS
Almost a decade ago, the term “DFARS Compliant Material” came to the forefront for companies supplying parts and services to the government. The original Federal Acquisition Regulation (FAR) clause 252.225-7014 specified “A Preference for Domestic Specialty Metals.” What that means in our world is that for fasteners to be DFARS compliant, the metal used to fabricate them must be melted or manufactured in the United States or a qualifying country.
Qualifying countries: Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Israel, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Turkey, United Kingdom of Great Britain and Northern Ireland. Visit the DPC website, section 252.225, or the ACQ website to keep up to date with DFARs requirements, which were updated January 2023. To learn more about DFARS as it pertains to Mil-Spec fasteners, refer to this link.
11. How do I know if a fastener is Mil-Spec certified?
Mil-Spec fasteners are commonly supplied with a manufacturer’s Certificate of Conformance (COC) referencing the part number which calls out the standard the fastener is made to.
12. What paperwork comes with Mil-Spec fasteners?
Although Mil-Spec fasteners are commonly provided with the Manufacturer’s Certificate of Conformance (COC), other paperwork such as Material Test Report (MTRs), Plating or Heat Treatment Certifications, DFARS certification, Lot traceability or Dimensional Test reports may also be available and sometimes involve a fee.
Here is a more extensive list of paperwork that might accompany Mil-spec fasteners:
- Manufacturer’s Certificate of Conformance (COC)
- Verifies that the parts meet the specified Mil-Spec standard
- Should include part number, lot number, specification, and manufacturer info
- Material Test Reports (MTRs) (if required)
- Confirms the chemical and mechanical properties of the raw material
- Typically needed for DFARS compliance or aerospace contracts
- DFARS Compliance Statement (if applicable)
- Required if your project is subject to DFARS specialty metals clause
- Should confirm country of melt and manufacture is DFARS-approved
- Plating or Finish Certifications (if applicable)
- Certifies any surface treatments (e.g., cadmium, zinc, passivation) meet required specs
- Heat Treat Certification (for heat-treated parts)
- Confirms the heat treatment process meets the Mil-Spec requirements
- Dimensional or Inspection Reports (on request or for critical parts)
- Documents that parts were inspected and meet dimensional tolerances
- Lot Traceability
- Ensures all fasteners in your order can be traced back to the original manufacturing lot
13. How do I read a Mil-Spec part number?
Each character in the part number provides information about the size, material, thread, and finish. For example, MS24693C4, sometimes expressed MS24693-C4 or MS24693C-4 is a 4-40 x 3/8 Phillips Flat 100 Degree Machine Screw in 300 Series Stainless Steel. Contact us if you need help decoding a part number!
14. Where can I get a print of a Mil-Spec part number?
Documentation for MIL-STD parts are maintained by the Defense Logistics Agency (DLA). The Aerospace Industries Association (AIA) has a database of prints available for purchase.
The fastest way to avoid delays is to align documentation requirements up front, especially when DFARS applies or when your flowdown calls for more than a standard COC.
Lessons learned: Mil-spec fastener compliance, certifications, and documentation.
Material test reports, plating/finish certs, heat-treat certs, dimensional/inspection reports, and lot traceability can be available, but they often need to be explicitly requested, and sometimes also carry added cost, so it’s smart to define that scope before release and ensure all needed documents are included during your receiving process.
In our next installment, Part 3, we’ll shift from compliance to sourcing strategy: where to find Mil-Spec catalogs/specs, what types of MIL-STD hardware are commonly used, which materials show up most, and how to think about functional equivalents and cross-referencing without compromising requirements.
In the meantime, if you have any questions, feel free to Connect withour team or send us a request for quote and our team of sourcing experts will help you find what you need. “Finding the right screw for you” is our tag line after all!
Related:
- Top 27 Mil-Spec Fastener Questions & Expert Answers Part 1 (Blog)
- Buyer’s Guide to Mil-Spec Fasteners
- Mil-Spec DFARS!? What the heck is that?
- Mil-Spec Fasteners Guide: Frequently Asked Questions
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Top 27 Mil-Spec Fastener Questions & Expert Answers on AN, MS, NAS & MIL-STD Hardware Frequently Asked Questions About Military Standard (MIL-STD) Hardware (Part 1 of 4)
Posted: January 28, 2026 Filed under: DFARS, Domestic Fasteners, Mil-Spec Fasteners | Tags: DFARS Compliant, Domestic Fasteners, Mil-spec, Mil-spec fasteners, Mil-Spec Fasteners Cross-Reference, Mil-Spec Fasteners Distributor, Mil-Spec Fasteners Supplier 3 CommentsAt MF Supply, we specialize in sourcing and delivering certified Mil-Spec fasteners governed by MIL-STD requirements established by the US Department of Defense (DOD) and administered by the Defense Logistics Agency (DLA).
Mil-Spec hardware isn’t just “stronger” or “higher quality.” It’s manufactured, tested, inspected, and documented to ensure repeatable performance, exacting paperwork and audit-ready compliance, lot after lot, program after program. Strength, dimensions, materials, finishes, inspection criteria, and documentation are all defined long before a part ever reaches production.
For aerospace, defense, and precision manufacturers, the wrong interpretation of a part number, finish, or country-of-origin requirement can lead to compliance issues, production delays or worse.
That’s why we’ve compiled answers to the most common/frequent Mil-Spec fastener questions we hear from engineers, program managers, and procurement teams every week. The questions that surface during design, procurement, supplier audits, alternates approvals, and “why did this part get rejected?” moments.
In Part 1 of this four-part series, we cover the fundamentals:
- What actually makes a fastener truly Mil-Spec
- How Mil-Spec compares to commercial hardware (with a real-world example)
- The most common standards you’ll encounter (AN, MS, NAS/NASM)
- How to quickly identify a Mil-Spec part number
- What “Made in the USA” does, and does not, mean in practice
Think of this as the foundation, before alternates are approved, or auditors start asking uncomfortable questions.
Part 1
1. What is a Mil-Spec fastener?
Mil-Spec (Military Specification) fasteners or MIL-STD fasteners are hardware components that meet specific standards set by the US Department of Defense (DOD). These fasteners are used in critical military, aerospace, and defense applications where reliability, traceability, and performance are essential.
2. What makes a fastener “Mil-Spec”?
A fastener is considered “Mil-Spec” when it meets strict US military standards for tensile strength, hardness, material, plating, dimensions, quality, and performance. These fasteners are made to precise specifications, often with specialized coatings, and must pass rigorous testing and inspection. They come with full traceability and certification to ensure reliability in mission-critical applications. True Mil-Spec fasteners are produced only by approved manufacturers and backed by documentation.
3. What is the difference between Commercial and Mil-Spec Fasteners?
Mil-spec fasteners look a lot like their civilian/commercial cousins, but these little guys are made to specific standards that define in detail the fasteners’ attributes, including dimensions, tensile strength, hardness, threads, drive type, material qualities, plating/finish, and more. Mil-spec fasteners are even traceable by lot to designated manufacturers. The Qualified Suppliers List for Manufacturer’s [QSLM] is a government-maintained list of Manufacturers certified to make Mil-Spec fasteners according to the highest quality standards—commercial fasteners are not held to such specific and exacting standards.
4. Do Mil-Spec fasteners have different features and standards than commercial fasteners?
Mil-Spec parts are manufactured and tested to strict military standards to ensure performance and reliability. In general, commercial fasteners will not have the exact same quality standards. Let’s look at a specific example and compare the Mil-Spec MS24693-C4, (sometimes referred to as MS24693C4 or MS24693C-4) which is a 4-40 x 3/8 Phillips flat 100 degree machine screw in 300 series stainless steel, to its commercial cousin.
Features of MS24693C-4:
- Manufactured in a QLSM approved factory
- Made/melted in the USA or other DFARs* approved country
- Materials to procurement spec FF-S-92, SAE AIR 4127
- Cleaned, descaled, passivated to AMS-QQ-P-35; AMS 2700
- Dimensions, tensile, hardness, threads, recess, head marking to AN, MS, NAS, NASM standards
- Magnetic permeability to test specs ASTM A342
- Quality Assurance to procurement spec FF-S-92 MIL-STD 1312
- Inspection system requirements per Mil-I-45208
- Full lot traceability, manufacturer’s certification, chemical and physical certification
- Available in diameters from #0 through 1/4 inch in coarse and fine thread and various lengths
Features of 4-40 x 3/8 commercial Phillips flat 100 degree machine screws in 18-8 series stainless steel:
- Manufactured per ASME B18.6.3-2002
- Thread dimensions per ASME B1.1
As you can see, the Mil-spec version is held to a higher and more exacting level of quality and testing than the commercial version. As such, the Mil-spec parts are cleaned and passivated, and tested for magnetic permeability, whereas the commercial parts don’t have this requirement.
5. What are the most common Mil-Spec standards?
The most common Mil-Spec fastener designations include:
- AN – Army/Navy Aeronautical
- MS – Military Standard
- NAS & NASM – National Aerospace Standard
6. How can I identify a Mil-Spec fastener?
Look for part numbers starting with MS, NAS, or AN, which indicate the applicable standard.
7. Are Mil-Spec fasteners always made in the USA?
Not necessarily. However, fasteners required to meet DFARS compliance must be made from specialty metals that are melted and manufactured in qualifying countries, including the USA.
If you take only one thing from these first seven questions, let it be this: true Mil-Spec fasteners are produced only by approved manufacturers and backed by documentation. And while “USA-made” is sometimes assumed, DFARS requirements are tied to specialty-metal sourcing/melt and qualifying countries, not a blanket label, so it’s worth confirming early. In Part 2, we’ll go deeper on DFARS, specialty metals, and the documentation stack (COCs, MTRs, plating/heat-treat certs, inspection reports) that often determine whether parts pass review.
In the meantime, if you have any questions, feel free to Connect with our team or send us a request for quote and our team of sourcing experts will help you find what you need. “Finding the right screw for you” is our tag line after all!
Related:
- Buyer’s Guide to Mil-Spec Fasteners
- Mil-Spec DFARS!? What the heck is that?
- Mil-Spec Fasteners Guide: Frequently Asked Questions
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Case Study: Avoiding a 26-Week Delay with Stocked DFARS Screws
Posted: December 16, 2025 Filed under: DFARS, Domestic Fasteners, keensert, key-locking inserts, Mil-Spec Fasteners, Socket Head Cap Screw, Socket Products | Tags: Case Study, Certificate of conformance, COC, DFARS Compliant, Domestic Fasteners, manufacturing, Mil-spec, Mil-spec fasteners, Mil-Spec Fasteners Cross-Reference, Mil-Spec Fasteners Distributor, Mil-Spec Fasteners Supplier, Mil-Spec Socket Cap Screws, MTRs, Precision Engineering, Precision Manufacturers, Socket Head Cap Screw Leave a comment
A Buyer’s Case Study on Compliance + Speed
If you sell into the defense or aerospace industry, “finding a screw” is never just finding a screw. The part has to be dimensionally and chemically correct and compliant, with the documentation to prove it.
This is where many procurement teams get stuck: the hardware exists, but the paper trail doesn’t… or the lead time blows up the schedule.
The MF Supply Value Proposition
If you have a commercial part on a BOM that now needs DFARS / Buy American + documentation, MF Supply helps you do one of two things:
- Convert the requirement into the correct Mil-Spec / spec-controlled equivalent (form/fit/function + compliance + paperwork).
- Source or produce a DFARS-compliant version of a commercial catalog part with shorter lead times and with the right cert package.
You get the part you need, on time, with the compliance paperwork you need without playing supplier roulette.
What DFARS/Buy American Actually Means for Fasteners
For fasteners made from specialty metals (including many stainless and high-alloy steels), DFARS requires qualifying melt/manufacture origin. But the “gotcha” is simple: If you can’t document it, it doesn’t count.
Typical documentation packages include:
- Manufacturer Certificate of Conformance (COC)
- Country-of-origin / DFARs specialty metal compliance statements
- Material Test Reports (MTRs)
Visit the DPC website, section 252.225, to keep up to date with DFARs requirements, which were updated January 2023. Click here and scroll to 7009 for more information: 252.225-7000 Buy American Act – Balance of Payments Program Certificate.
The Challenge: Compliant Part, Short Lead Time, Complete Documentation
Many “available” fasteners on the market are:
- Not DFARS compliant
- Not available with COC/MTR
- Not stocked (or stocked without the right chain-of-custody), leading to long lead times
The Situation: “We Need It Now… and It Needs To Pass Audit.”
A manufacturer supporting a defense aerospace assembly needed a 10-32 x 3/4 socket head cap screw in 300-series stainless. The Bill of Materials (BOM) required:
- DFARS-compliant specialty metal
- Manufacturer COC
- MTRs / test reports
- Documented material origin
Their incumbent supplier quoted 26–30 weeks. That was a hard no.
The Solution: Cross-Reference to an In-Stock Mil-Spec Option (With Paperwork)
The buyer searched for DFARS-compliant 10-32 x 3/4 socket head cap screws in stainless steel and landed on MF Supply’s product page for: NAS1351C3-12 (10-32 x 3/4) Mil-Spec socket head cap screw, stainless, DFARS
MF Supply worked with the buyer to:
- Confirm the correct spec-controlled requirement
- Pull active inventory from a qualified supply chain
- Provide COC + MTR documentation
- Confirm DFARS specialty metal origin with documentation
The result
- 26+ week production delay avoided
- Compliance risk eliminated
- Audit-ready paperwork shipped with the order
When Cross-Referencing Helps (And When It Doesn’t)
Cross-referencing can reduce lead times and risk when it’s validated upfront:
- Form/fit/function confirmed
- Spec requirements verified (AN/MS/NAS/NASM, etc.)
- Documentation requirements confirmed (COC, MTR, COO/DFARS statements)
Substitution only works when the part and the paperwork both match the requirement.
Buyer Takeaway: In-Stock + Paperwork=Shorter Lead Times, No Surprises
If your customer needs DFARS / Buy American compliance, always ask:
- Can you provide a COC?
- Can you provide DFARS specialty metal documentation?
- Is material origin documented?
- Is it in stock, or are you quoting a 20–30 week lead time?
At MF Supply, inventory is backed by documentation, so you don’t have to choose between speed and compliance.
Need DFARS-compliant screws fast and with paperwork?
Send your part number, drawing, or BOM requirements. We’ll confirm the right spec, validate compliance, and quote the fastest safe path.
And yes, “finding the right screw for you” isn’t just our tagline. It’s our favorite sport.
Related:
- MF Supply Cross-reference playbook
- Buyer’s Guide to Mil-Spec Fasteners
- Mil-Spec DFARS!? What the heck is that?
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Ultimate Guide: Inch, Metric, and Mil-Spec Precision Shoulder Screws Cross Reference Charts and Guide
Posted: July 25, 2024 Filed under: Cross Reference Charts, DFARS, Functional Equivalents, Mil-Spec, MS51575, MS51576, Precision Shoulder Screws, Shoulder Bolts, Shoulder Screws | Tags: Cross Reference Guide, Functional Equivalents, Mcmaster-Carr 94035A208, Metric Shoulder Bolts, Metric Shoulder Screws, Mil Spec Shoulder Screws, Mil-Spec Shoulder Screws, Precision Manufacturers, Precision Shoulder Screws Leave a comment
At MF Supply, we spend a lot of time sourcing hard to find, back ordered, expensive, or out-of-stock OEM hardware brands. We do this in order to save money and to reduce long lead times for our customers, without sacrificing quality. One of our core competencies is crossing brand names to functionally equivalent parts that maybe Mil-spec, alternative brands or generic parts.
What Is a Functional Equivalent Fastener?
In the fastener industry, a functional equivalent fastener is a component/part that matches a brand-name product in form, fit, and function, including material and plating specifications, but is produced by a different manufacturer. As a result, the industrial marketplace features a myriad of fasteners and components that are registered under various trademark brands, but that offer the same functionality. This, in turn, allows you to achieve the same product performance and quality desired at a potential lower cost and with shorter lead times than you would get with fasteners from well know or expensive brands.
Does My OEM Brand Have A Functional Equivalent or Alternative Fastener?
Many OEM brands available in the industry today have generic functional equivalents or alternatives. Below is a comprehensive list of popular brand names that show up quite often in the fasteners space and that have generic equivalent or alternative options to their OEM branded products:
3 Star Rivets USA, ABBATRON®, ALCOA, AMATOM®, APEX®, ARCONIC®, ATLAS®, AVDEL®, AVK®, B. F. GOODRICH, BOLLHOFF, BUCKEYE, CAPTIVE, CELUS®, CHERRY®, CONCORD, FASTENAL, GESIPA®, GLOBE ELECTRONICS, GRIPCO®, H. H. SMITH, HELICOIL®, HOWMET, HUCK, INDUX, INTERFAST, KATO®, KEENSERT®, KEYSTONE, LOCTITE®, LYN-TRON, MACLEAN ESNA®, MARSON®, MCMASTER-CARR, MISUMI, MSC INDUSTRIAL, PEM®, PIC DESIGN®, POP®, POWERS®, QUICKSCREWS, RAF, RECOIL®, RED HEAD®, ROTOR CLIP®, SHEREX, SIMPSON, SOUTHCO®, SPS TECHNOLOGIES, TINNERMAN®, U. S. ANCHOR, UNICORP, VIP, W. M. BERG, W. W. GRAINGER, WALDES TRUARC®.
Do Precision Shoulder Screws Have Functional Equivalents?
Yes! Precisions shoulder screws, also known in the industry as just shoulder screws or tight tolerance shoulder screws, do have functional equivalents. In fact, one surefire way to save money and shorten delivery time is to cross the OEM branded precision shoulder screw on your bill of materials to a functional equivalent.
Popular brands in the precision shoulder screws space include: Amatom, Cambion, Concord, Globe, HH Smith, Keystone, Lyn-tron, Misumi, Pic Design, RAF, and WM Berg. A comprehensive selection of Precision Shoulder Screws is also offered by McMaster-Carr, MSC, and Grainger.
Let’s take, for example, the following inch/imperial sized precision shoulder screw: 3/16” shoulder diameter x 1” long x 8-32 thread in SS18-8 (300 Series) with a hex-socket drive. This shoulder screw is offered by the seven brands listed below under the following part numbers:
- Grainger: 6JY20
- Lyn-tron: SS7431-00
- McMaster-Carr: 94035A208
- MSC Industrial: 67313726
- Pic Design: 4423
- RAF: 6931-SS
- WM Berg: PZ-14-3
You can also locate precision shoulder screws by Mil-Spec numbers, which include MS51575 and MS51576; all of which are DFARS compliant with full paperwork/documentation. The above mentioned shoulder screw or part, for instance, is equivalent to a Mil-Spec MS51576-14.
At MF Supply, we offer an extensive cross-reference guide to help you discover the ideal alternative for your requirements. Explore our most popular precision shoulder screws cross reference charts below to find functional equivalents to your OEM-branded products!
Precision Shoulder Screws Cross-Reference Charts: Find OEM Brands and Functional Equivalents
Precision inch hex socket shoulder screws and precision inch slotted shoulder screws are available in 416 Series Stainless Steel. Stock sizes include 1/8 through 1/2 diameters.
Precision inch hex socket shoulder screws and precision inch slotted shoulder screws are also available in 300 Series Stainless Steel. Stock sizes include 1/8 through 1/2 diameters.
Precision metric hex socket shoulder screws are available in 18-8, 300 & 416 Series Stainless Steel. Stock sizes include M4 through M12 diameters.
Precision metric slotted socket shoulder screws are available in 18-8, 300 & 416 Series Stainless Steel. Stock sizes include M4 through M12 diameters.
Precision Mil-Spec hex socket shoulder screws, MS51576, are available in 300 Series Stainless Steel. Stock sizes include 4-40 through 3/8-16 diameters.
Precision Mil-Spec slotted socket shoulder screws, MS51575, are available in 300 Series Stainless Steel. Stock sizes include 1/8 through 1/2 diameters.
Using functional equivalents, including generics and other OEM brands’ versions of precision shoulder screws, is a practice smart manufacturer’s often use to save money and shorten lead times!
Precision Shoulder Screws at MF Supply
MF Supply is a leading supplier of precision shoulder screws including major brands and equivalents. We stock a huge inventory including parts that are commercial and mil-spec. Our Mil-Spec products are DFAR compliant with COC and full certifications available upon request.
Precision shoulder screws are available in imperial, mil-spec, and metric sizes, and in type 18-8/303, 300 Stainless Steel and in 416 Stainless Steel – 316 Stainless Steel, Alloy and other exotic materials are also available for special order.
Product Lines Include:
- Inch Precision Shoulder Screws
- Metric Precision Shoulder Screws
- Mil-Spec Precision Shoulder Screws – MS51575 & MS51576
Manufacturers working with us can expect timely deliveries, competitive pricing, and access to expert guidance to help optimize their fastener choices. Manufacturers eager to explore our product catalog, including our recently expanded product categories, are encouraged to visit our website at www.mfsupply.com, reach out to us at sales@mfsupply.com or request a quote. Our MF Supply team of sourcing experts will help you find what you need. “Finding the right screw for you” is our tag line after all!
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined – With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? – Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items – We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business – As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
Over 2,600 TEK® Alternative Self Drilling Screws Now In Stock At MF Supply!
Posted: February 20, 2024 Filed under: DFARS, Fasteners, Manufacturing Day, Self Drill Machine Screws, Self Drilling Screws, Self-drilling, Supply chain - manufacturing, Threaded Fasteners | Tags: Distributor, MF Supply, Screws, Self Drill Drywall Screws, Self Drill Machine Screws, Self Drill Screws, Self Drilling Screws, Self-Drilling Screws, TEK® Alternative Self Drilling Screws, TEK® Alternative Self-Drilling Screws Leave a comment
Greetings to our precision manufacturing community!
MF Supply is a leading WOSB / WBE Certified distributor of commercial, mil-spec and custom made fasteners. With a legacy of over 50 years, and a reputation for continuously evolving to meet our customers’ needs, we are thrilled to announce another expansion to our online products’ catalog. This recent expansion include an extensive list of 2,690 unique TEK® alternative self drilling screws in a myriad of drives, head styles, sizes and materials.
We are always evolving and looking for ways to meet the changing needs of manufacturers. With this strategic expansion, we underscore our commitment to be a comprehensive one-stop shop for commercial and mil-spec fasteners and hardware for industrial and precision manufacturers—while also ensuring our customers have a seamless and efficient purchasing experience both online and offline!
TEK® Alternative Self Drilling Screws at MF Supply
We have always stocked and sourced a variety of imported, domestic and mil-spec screws. We are proud to announce the inclusion of self-drilling screws—generic alternatives to the well known TEK® screws—in standard and nonstandard sizes, and in a variety of standard and exotic materials. Our off-the-shelf products include #2 through #3/8-12 Self Drilling Screws in Steel Zinc and Bake, Steel Black Phosphate, Steel Black Oxide & Oil, Steel Black Zinc & Bake, Steel Green Ceramic, Steel Zinc Nickel 1,000 Hours Salt Spray, Steel Black Oxide, Steel Black Zinc Nickel 1,000 Hour Salt Spray, Steel Zinc Green, Steel Zinc Yellow, Stainless Steel, 410 Stainless Steel & 316 Stainless Steel.
Below is a list of all the heads and drives included in this TEK® alternative self drilling screws’ list:
- #10 Flat Undercut Head with Phillips Drive
- #12 Indented Hex Washer Head with Unslotted Drive
- #6 Flat 82D Head with Phillips Drive
- #6 Oval Head with Phillips Drive
- Bugle Head with Phillips Drive
- Flat 82D Head with Combo (Square/Phillips) Drive
- Flat 82D Head with Phillips Drive
- Flat 82D Head with Square Drive
- Flat 82D Head with Torx Drive
- Flat 82D Undercut Head with Phillips Drive
- Flat 82D Undercut Head with Square Drive
- Flat 82D with Nibs Head with Phillips Drive
- Flat Trim Head with Phillips Drive
- Flat Trim Head with Square Drive
- Hex Flange Head with Unslotted Drive
- Indented Hex Head with Unslotted Drive
- Indented Hex Washer Head with Combo (Slotted/Phillips) Drive
- Indented Hex Washer Head with Phillips Drive
- Indented Hex Washer Head with Slotted Drive
- Indented Hex Washer Head with Unslotted Drive
- Indented High Hex Washer Head with Unslotted Drive
- Large Pancake Head with Square Drive
- Modified Truss Head with Phillips Drive
- Modified Truss Head with Square Drive
- Modified Truss Head with Torx Drive
- Oval Head with Phillips Drive
- Oval Undercut Head with Phillips Drive
- Pan Head with Combo (Slotted/Phillips) Drive
- Pan Head with Phillips Drive
- Pan Head with Square Drive Pan
- Head with Torx Drive
- Pancake Head with Combo (Square/Phillips) Drive
- Pancake Head with Phillips Drive
- Pancake Head with Square Drive
- Pancake Head with Torx Drive
- Round Washer Head with Phillips Drive
- Round Washer Head with Square Drive
- Serrated Indented Hex Washer Head with Slotted Drive
- Serrated Indented Hex Washer Head with Torx Drive
- Serrated Indented Hex Washer Head with Unslotted Drive
- Serrated Indented High Hex Washer Head with Unslotted Drive
- Serrated Pan Head with Phillips Drive
- Serrated Pan Head with Torx Drive
- Special Pan Head with Phillips Drive
- Truss Head with Phillips Drive
- Truss Head with Torx Drive
- Wafer Head with Combo (Square/Phillips) Drive
- Wafer Head with Phillips Drive
- Wafer Head with Square Drive
- Wafer Head with Torx Drive
- Wafer With Nibs Head with Phillips Drive
By bolstering our product offering in these key areas, we aim to be the preferred supplier for manufacturers in various sectors, including: aerospace, OEMS of instrumentation, equipment and machines, architectural metal and glass, sheet metal fabrication, contract manufacturers, lighting, furniture, and elevators.
Manufacturers working with us can expect timely deliveries, competitive pricing, and access to expert guidance to help optimize their fastener choices. Manufacturers eager to explore our product catalog, including our recently expanded product categories, are encouraged to visit our website at www.mfsupply.com, reach out to us at sales@mfsupply.com or request a quote. Our MF Supply team of sourcing experts will help find what you need. “Finding the right screw for you” is our tag line after all!
“At MF Supply, we understand the dynamic needs of the manufacturing industry, including the balance of price, quality, availability and certification paperwork. The expansion of our product catalog demonstrates our commitment to being a one-stop solution for all fastener needs. Whether it’s standard fasteners, specialized custom hardware, mil-spec parts or OEM brand names like the trusted Holo-Krome brand, we have it all under one roof.” – Robin Lieberman, President of MF Supply.
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Your Purchasing Department’s Secret Weapon!
Here are 5 reasons to buy from MF Supply
- We Source and Deliver What Others Can’t, Faster Than You Imagined: With speedy solutions for elusive parts and lengthy delivery times – We’ve got you covered with both custom-made specials (send us your prints!) and hard-to-source options, quickly and at a fair price.
- Cost-Effective Functional Equivalents to OEM Brand Fasteners-Why Pay More? Reduce lead times and costs with the same quality and same performance. Try us for alternatives to brands like McMaster-Carr, MSC, Misumi, PEM, and RAF and experience unmatched savings! Same form, fit and function for less.
- Huge Selection of Certified and Commercial Hardware with Same-day Shipping Available for Countless Items: We source and stock standards, specials, commercial, Mil-Spec & OEM brands in inch and metric sizes. Standards include AN, NAS, MS, IFI, ASTM, ASME, DIN, ISO, JIS. We are sourcing experts for inserts, certified Mil-Spec parts and anything in stainless steel. Many parts are available with manufacturers’ certifications, including DFAR, ROHS and CoC. Trust us to ship on-time from our national distribution centers.
- A User-Friendly, 24/7 Online Shopping Experience – Enjoy a 24/7 online shopping experience with easy-to-use filters, detailed product information, and a constantly updated technical directory. Sign up now for a seamless experience!
- WBE/WOSB Certified Woman-Owned Small Business: As a certified Woman-Owned Small Business, we support your diversity goals. Trust us to meet your fastener and sourcing needs with expertise and efficiency [Cage Code 58QG4].
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
MF Supply Expands Online Product Catalog to 22,189 Unique Items and Counting!
Posted: October 26, 2023 Filed under: Bolts, DFARS, Fasteners, Holo-Krome, Mil-Spec, Plastite Alternative Screws, Socket Head Cap Screw, Supply chain - manufacturing, Taptite Alternative Screws, Threaded Fasteners, Trilobular Fasteners | Tags: Bent Anchor Bolts, Bolts, Carriage Bolts, Closed Eye Screws, Commercial Fasteners, Distributor, Elevator Bolts, Flange Bolts, Hanger Bolts, Heavy Hex Bolts, Heavy Hex Structural Bolts, Hex Head Cap Screws, Hex Head Joint Draw Bolts, Hex Machine Bolts, Hex Tap Bolts, Holo-krome, Industrial Manufacturers, Inserts, MF Supply, Mil-spec, Mil-spec fasteners, Open Eye Bolts, Plastite Alternative Screws, Plow Bolts, Precision Manufacturers, Socket Cap Screws, Sourcing Experts, Square Head Battery Bolts, Square Machine Bolts, Step Bolts, supply chain, Taptite Alternative Screws, Thread Forming Screws, Thread Rolling Screws, Timber Bolts, Track Bolts Leave a comment
Greetings to our precision manufacturing community!
MF Supply is a leading WOSB / WBE Certified distributor of commercial, mil-spec and custom made fasteners. With a legacy of over half a century and a reputation for continuously evolving to meet our customers’ needs, we are thrilled to announce the recent expansion of our online catalog to include a whopping 22,189 unique items! Our updated catalog now includes Holo-Krome branded products, non-standard, domestic and DFAR Socket Cap Screws, an extensive list of Bolts, and more Thread Rolling & Thread Forming Screws.
We are constantly evolving to meet the changing needs of manufacturers. With this strategic expansion, we underscore our commitment to as a comprehensive one-stop shop for commercial and mil-spec fasteners and hardware for industrial and precision manufacturers, ensuring our customers have a seamless and efficient purchasing experience online and offline.
New Product Highlights:
1. Socket Cap Screws: We have always stocked and sourced a variety of imported, domestic and mil-spec socket cap screws. Our recent expansion in this category include standard and nonstandard sizes, and a variety of standard and exotic materials. We are now offering more Button Head, Flat Head, Flat Head 100 degree, Low Head and Standard Socket head cap screws in a wider choice of materials including: A286, Brass, Inconel, Silicon Bronze, and 316 Stainless Steel, in addition to regular Alloy and 18-8 Stainless Steel.
2. Bolts: Our selection of bolts has undergone a significant enhancement and now includes 18 Bolt categories, in multiple sizes and materials. Materials offered include Steel, B7 Alloy, Stainless Steel, 316 Stainless Steel, Aluminum, Silicon Bronze, A2, A4, Brass, Inconel and Nickel-Copper. Our 18 bolts’ categories include:
- Bent Anchor Bolts
- Carriage Bolts
- Closed Eye Screws
- Elevator Bolts
- Flange Bolts
- Hanger Bolts
- Heavy Hex Bolts
- Heavy Hex Structural Bolts
- Hex & Square Machine Bolts
- Hex Head Cap Screw
- Hex Head Joint Draw Bolts
- Hex Tap Bolts
- Open Eye Bolts
- Plow Bolts
- Square Head Battery Bolts
- Step Bolts
- Timber Bolts
- Track Bolts
3. Holo-Krome Products: We are proud to announce the inclusion of Holo-Krome brand fasteners to our catalog. Holo-Krome, a reputable domestic OEM, is well known for their extensive offering of quality products within the Socket Products segment. We introduce the following Holo-Krome products that are now available for purchase directly in our website: Dowel Pins, Hex Socket Shoulder Screws, Socket Cap Screws, Allenuts, Socket Jam Screws, Socket Pressure Plugs, and Socket Set Screws.
4. Thread Rolling / Thread Forming Screws: We also expanded our online offering to now include over 2.7K alternatives to Plastite® & Taptite® Screws. Our recent expansion in this category include more Steel, Black Oxide and Stainless Steel screws. Our off the shelf products are ready to ship from multiple warehouses across the USA, and include:
- EJOT® PT®-Alternative, Metric
- Plas-Fix®45 and Plastite®-Alternate, Metric
- Plastite®-Alternative, Inch Sizes
- Taptite®-Alternative, Inch Sizes
- Taptite®-Alternative, Metric Sizes
By bolstering our product offering in these key areas, we aim to be the preferred supplier for manufacturers in various sectors, including: aerospace, OEMS of instrumentation, equipment and machines, architectural metal and glass, sheet metal fabrication, contract manufacturers, lighting, furniture, and elevators.
Manufacturers working with us can expect timely deliveries, competitive pricing, and access to expert guidance to help optimize their fastener choices. Manufacturers eager to explore our product catalog, including our recently expanded product categories, are encouraged to visit our website at www.mfsupply.com, reach out to us at sales@mfsupply.com or request a quote. Our MF Supply team of sourcing experts will help find what you need. “Finding the right screw for you” is our tag line after all!
“At MF Supply, we understand the dynamic needs of the manufacturing industry, including the balance of price, quality, availability and certification paperwork. The expansion of our product catalog demonstrates our commitment to being a one-stop solution for all fastener needs. Whether it’s standard fasteners, specialized custom hardware, mil-spec parts or OEM brand names like the trusted Holo-Krome brand, we have it all under one roof.” – Robin Lieberman, President of MF Supply.
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Six Reasons To Buy From MF Supply
- Full eCommerce Enabled Website With Technical Manual Available 24/7 – Visit our website and Create a New Account, track online orders, browse our product catalog, check technical specs, subscribe to our blog, or buy online. We are adding items and improving functionality daily!
- Same Day Shipping From The USA – Our hardware products are in stock and ship to you directly from our USA based distribution centers.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- Creatively Solve Problems – We are sourcing experts, offer competitive pricing and specialize in finding hard to find parts and reducing long deliveries.
- One-Stop Shopping On Certified Hardware – We stock and source a full line of fasteners including Mil-Spec, DFARS compliant and other industrial products.
- WBE/WOSB Woman Owned Certified Small Business – To meet your diversity & set-aside needs.
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Precision Shoulder Screws!? What the heck are those?
Posted: April 26, 2023 Filed under: DFARS, Mil-Spec, MS51575, MS51576, Precision Shoulder Screws | Tags: Fasteners, hex socket screws, MS51575, MS51576, Precision Shoulder Screws, Shoulder Bolts, Stripper Bolts 1 Comment
What the heck are Precision Shoulder Screws?
Here we go again, with our “what the heck is that” series refreshed for 2023, where we discuss some of the unique fasteners and electronic hardware that manufacturers use in the design and assembly of their products. Today, we will re-introduce you to the Shoulder Screw!
What is a Precision Shoulder Screw?
Shoulder Screws, which are sometimes called Shoulder Bolts or Stripper Bolts, are (generally) hex socket screws with an enlarged, unthreaded cylindrical shoulder under the head. They are comprised of 3 main parts: the head, the shoulder and the thread. They come in two basic categories, “Commercial” and “Precision”.
Commercial Shoulder Screws are made to inch standard ANSI ASME B18.8.2. The size range for the shoulder diameter is from ¼ to 2”. The thread class is 3A and the tolerance on the shoulder is +.005 / -.005.
Precision Shoulder screws are sometimes referred to as “tight tolerance” shoulder screws. They are not governed by any official ANSI or ASME standard. The size range for the shoulder diameter is from 3/32 to ½. The thread class is 2A and the tolerance on the shoulder diameter varies from +.000/-.001 to -.0005 to -.0015 depending upon the manufacturer. Now that’s precise!
Who uses Shoulder Screws?
Just as Dowel Pins and Retaining Rings are used to locate or hold parts together within a precision assembly or a fixture, so are Precision Shoulder Screws.
Yet shoulder screws are more versatile. When installed, the unthreaded shoulder acts as a shaft for rotating items such as bearings and bushings, precision spacing, machinery support, and motion guiding. Precision Shoulder screws exacting tolerances make them ideal for use with other precision components.
They are broadly used across various applications in many industries, including: aerospace, electrical motors, hydraulic equipment, instrumentation, tooling and fixtures, machinery, military and many more.
What do I need to consider when selecting Shoulder Screws?
Although Shoulder Screws are offered in a multitude of materials and styles, when it comes to the main commercial and precision offerings, there are a few main issues to consider.
Which Drive and Head Style?
Precision shoulder screws are readily available in hex socket and slotted drives. Philips drives are available in certain sizes. Torx and Star are available for special order. Typical head styles are a modified fillister with a flat top where the head diameter is about twice the head height. Low head fillisters are available in certain sizes
Which material do I need?
Precision shoulder bolts are readily available in Type 18-8/303 Stainless Steel and 416 Stainless Steel. 316 Stainless Steel, Alloy and other exotic materials are available for special order.
Are there other factors to consider?
When ordering Precision Shoulder screws, specify the Shoulder Diameter, Shoulder length, thread size, material and drive type. For example, an example of a typical Precision Shoulder screw is a ¼ shoulder x ½ long x 10-32 thread in SS18-8 with a hex-socket drive. Non-locking is the most popular style, but locking may also be available.
Precision Shoulder Bolts often show up under their brand name. Some of the most popular brands include: BERG, Concord, Globe, PIC, Lyn-tron and RAF. A comprehensive selection of Shoulder Screws is also offered by McMaster-Carr (tight tolerance series), MSC and Grainger.
Finally, Precision Shoulder Screws can also show up under their Mil-spec numbers, which include MS51575 & MS51576 and are DFARS compliant with full paperwork.
Precision Shoulder Screws at MF Supply
We currently offer:
- The full range of commercial and mil-spec parts, including parts that are DFARS and ROHS compliant.
- MS51576 Now available for online purchase!
- Brand names and generic equivalents.
- Custom made parts per print in non-standard and exotic materials and finishes.
- Inch, Metric and Mil-Spec sizes.
For more detailed information on Precision Shoulder Screws, visit us at our website or Request a Quote today, and our MF Supply team of sourcing experts can help you find what you need. “Finding the right screw for you” is our tag line after all!
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Six Reasons To Buy From MF Supply
- Full eCommerce Enabled Website With Technical Manual Available 24/7 – Visit our website and Create a New Account, track online orders, browse our product catalog, check technical specs, subscribe to our blog, or buy online. We are adding items and improving functionality daily!
- Same Day Shipping From The USA – Our hardware products are in stock and ship to you directly from our USA based distribution centers.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- Creatively Solve Problems – We are sourcing experts, offer competitive pricing and specialize in finding hard to find parts and reducing long deliveries.
- One-Stop Shopping On Certified Hardware – We stock and source a full line of fasteners including Mil-Spec, DFARS compliant and other industrial products.
- WBE/WOSB Woman Owned Certified Small Business – To meet your diversity & set-aside needs.
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.
Mil-Spec DFARS!? What the heck is that?
Posted: March 14, 2023 Filed under: DFARS, Fasteners, Mil-Spec, Military Standard, MS24693C | Tags: What the heck is Mi-Spec DFARS? 4 Comments
Welcome to the second edition of our “What the heck is that” series, refreshed for 2023, where we discuss some of the unique fasteners and electronic hardware that manufacturers use in the design and assembly of their products. If you sell to the military either directly or indirectly, then you are probably aware of today’s topic: “DFARS” and “Mil-spec fasteners”.
What does Mil-spec mean anyway?
Before we get into the nitty gritty of DFARS, let’s discuss what makes a “Mil-spec” fastener. Mil-spec is the informal name for the military standard the U.S. Department of Defense uses in the production of military equipment. For example, the MS24693C pictured above is a fastener produced according to strict military standards that are maintained by the DLA (Defense Logistics Agency).
Mil-spec fasteners look a lot like their civilian cousins, but, these little guys are made to a specific standard that defines in detail, the screw’s attributes, including: dimensions, tensile strength, hardness, threads, drive type, material qualities and plating, just to name a few. Mil-spec fasteners are even traceable by lot to designated manufacturers. The government maintains a list of factories and suppliers who are qualified to manufacture Mil-spec fasteners. These suppliers have met all the government’s requirements and pass the highest quality control standards. This designation is called Qualified Suppliers List for Manufacturer’s [QSLM].
AKA – Also known as…..
Mil-spec fasteners are usually designated by an AN, MS, NAS or NASM prefix followed by a part number. Each of these prefixes is an abbreviation: NAS stands for National Aerospace Standard and MS stands for Military Standard. An example of one of the most common and popular Mil-spec machine screws is the MS24693C. Its commercial equivalent is a Phillips Flat 100 degree Machine Screw in 300 series stainless steel. Below, we’ll tell you more about this popular fellow.
Who uses Mil-spec Fasteners?
Mil-spec fasteners may be used by anyone manufacturing or servicing military equipment. Often, the bill of materials calls for specific Mil-spec grade fasteners in accordance with a part number, drawing or procurement requirement. Some of the most common uses of Mil-spec fasteners include aerospace, naval vessels and weapons systems.
Now, tell me about DFARS…
Almost a decade ago, the term “DFARS Compliant Material” came to the forefront for companies supplying parts and services to the government. The original Federal Acquisition Regulation (FAR) clause 252.225-7014 specified “A Preference for Domestic Specialty Metals.” What that means in our world is that for fasteners to be DFARS compliant, the metal used to fabricate them must be melted or manufactured in the United States or a qualifying country.
Qualifying countries include: Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Israel, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Turkey, United Kingdom of Great Britain and Northern Ireland.
Important Note: DFARS only pertains to fasteners made from “specialty metals” including: stainless steel, high alloy steel like Grade-BD, or Grade 5 Chromium steel with high chromium content.
Visit the DPC website, section 252.225, to keep up to date with DFARs requirements, which were updated January 2023. Click here: https://www.acq.osd.mil/dpap/dars/dfars/html/current/252225.htm.
An example of a DFARS Mil-Spec Screw please!
As we’ve learned, the MS24693C is actually Phillips Flat 100 degree Machine screws in 300 series stainless steel. The MS24693-C4 is a 4-40 x 3/8 Phillips Flat 100 Degree Machine Screw in 302 Stainless Steel, and it is one of the most widely used sizes. Interestingly, the MS24693C superseded the AN662C series, so you might come across the AN662C on an older print of bill of materials. Keep in mind, with any design or manufacturing decision, the reason for using a specific screw generally rests in the hands of engineering.
Features of the MS24693C
- Strict military standards ensure performance and reliability
- Made/melted in the USA or other DFARs-approved country
- Materials and dimensions meet Federal standard FF-S-92
- Inspected per Mil-I-45208
- Full lot traceability, manufacturer’s certification and chemical and physical certification
- Available in diameters from #0 through 1/4 inch in coarse and fine thread and various lengths
Lessons Learned
Considerations when purchasing MS24693C or other Mil-spec DFARs fasteners.
- Always ask for “full certifications”. This includes part name, part description, date of manufacture, lot number, chemical composition of material, and treatment of material including plating or passivation directly from the manufacturer.
- When purchasing Specialty metal screws that qualify for DFARS, at point of purchase, make sure the screws are DFARS. If you do not specifically ask for DFARS-compliant screws, you might receive screws that don’t meet the DFARS requirements, in which case, they won’t meet military standards. We’ve learned this the hard way so hopefully you don’t have to!
MS24693C and other Mil-spec DFARS Fasteners in Stock!
Here, at MF Supply, we stock some of the most common Mil-spec Fasteners, including the following: Machine Screws, Socket Screws, Hex Head Cap screws, Nuts, Flat washers and Standoffs and Spacers. Checkout our instock Military Line of fasteners. (LINK HERE https://www.mfsupply.com/mil-spec-fasteners-s/1823.htm) . If you don’t what you need listed, send us an RFQ, as we are sourcing experts!
Visit our website for more detailed information on Mil-spec Fasteners. Also, checkout our military linecard!
And, as always, if you don’t see it listed, ask us. “Finding the right screw for you” is our tag line after all!
Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.
Six Reasons To Buy From MF Supply
- Full eCommerce Enabled Website With Technical Manual Available 24/7 – Visit our website and Create a New Account, track online orders, browse our product catalog, check technical specs, subscribe to our blog, or buy online. We are adding items and improving functionality daily!
- Same Day Shipping From The USA – Our hardware products are in stock and ship to you directly from our USA based distribution centers.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- Creatively Solve Problems – We are sourcing experts, offer competitive pricing and specialize in finding hard to find parts and reducing long deliveries.
- One-Stop Shopping On Certified Hardware – We stock and source a full line of fasteners including Mil-Spec, DFARS compliant and other industrial products.
- WBE/WOSB Woman Owned Certified Small Business – To meet your diversity & set-aside needs.
MF Supply is a WBE/WOSB certified supply chain partner to business, industry and government. We are sourcing experts and stocking distributors of Hardware, Precision & Mil-Spec Fasteners and Safety supplies. For more than 50 years, we have been supplying manufacturers in the electronics, industrial, commercial, aerospace and military markets with the full range of fastener products and services. Our Cage Code is 58QG4 and our registered name is RL Supply Inc dba MF Supply.