Precision Dowel Pins for Manufacturers: A Comprehensive Guide
Posted: August 24, 2023 Filed under: dowel pin, Fasteners, Inch, Metric, Metric Dowel Pins, Mil-Spec, Pins, PRECISION DOWEL PIN | Tags: ASME B18.8.2, Bulk Pins, Custom Dowel Pin, Dowel Pins for Manufacturers, Fasteners, Functional Equivalent Pins, Hardware, Heavy Duty Fasteners, Inch Dowel Pins, Mechanical Fasteners, Metal, Metric Dowel Pins, Mil-Spec Dowel Pins, MS16555, Pins, Pins for manufacturers, Precision Dowel Pin, Precision Fasteners Leave a comment
Considering Precision Dowel Pins for Your Next Project?
When you’re in the heart of the manufacturing industry, precision is not just a luxury; it’s a necessity. Components like dowel pins may seem small and inconsequential, but in this realm of precision manufacturing, they are paramount to ensuring accurate alignment and fit. Precision dowel pins, in particular, play an indispensable role in guaranteeing accurate alignment and secure fastening in a broad spectrum of applications. But with various tolerances, standards, materials, and sizes available, how do you make the right choice? It is important to know and understand these factors in order to make informed decisions that will meet your expectations & manufacturing needs.
What are Precision Dowel Pins?
At their core, precision dowel pins are simple cylindrical rods. The term “precision” implies that these pins are manufactured to very tight tolerances in order to ensure accurate fit in assemblies. Tolerances refer to the acceptable variation in dimensions from the specified value. The tighter the tolerance, the less variation there is—meaning that their dimensions are incredibly accurate. This precision ensures that dowel pins fit snugly into corresponding holes in two components, ensuring their exact/accurate alignment.
Standards & Tolerances
Several standards are followed in the production of precision dowel pins. The prevalent standard specifications come from the International Organization for Standardization (ISO), the Deutsche Industrie Norm (DIN), the American National Standards Institute (ANSI), and the Military Standard (MS/MIL-SPEC) of the United States. At a minimum, these standards specify the pin shape, and the diameter and length tolerance. These standards might also specify the pin hardness and surface finish. OEM branded dowel pins are handled separately and are addressed later in this blog.
ISO Standard: ISO 2338A & ISO 2338B (for unhardened pins) and ISO 8734 (for hardened pins) are common standards for dowel pins. Under these standards, precision dowel pins can be manufactured to either “M6” or “M5” tolerance classes, with “M6” being the more common of the two.
- For example, an “M6” tolerance for a 5 mm dowel pin might have a diameter tolerance of -0.014 to 0 mm. So, the pin could be anywhere from 4.986 mm to 5 mm in diameter.
DIN Standard: DIN 7 (for unhardened, solid dowel pins) and DIN 6325 & DIN 6325H (hardened, solid dowel pins). Similar to ISO standards, the typical tolerance for precision dowel pins under DIN standards is designated as “M6.” This is the standard fit for dowel pins and ensures a tight fit that might require light pressing or can sometimes be hand-driven depending on the exact material and hole conditions.
- For example, for a 5 mm dowel pin under the DIN 7 or DIN 6325 standard, the typical diameter tolerance might have and upper limit of 5.000 mm & a lower limit of 4.986 mm.
ANSI Standard: ANSI standard for dowel pins is ASME/ANSI B18.8.2. This standard defines sizes and tolerances for standard dowel pins, with the “Standard Series” being the most common.
- For example, for a 1/4 (.25) inch interference fit diameter pin, the diameter tolerance might be +0.0002 to 0.000 inch. So, the pin diameter could be anywhere from 0.2500 inches to 0.2502 inches in diameter.
MIL-SPEC Standard: MIL-SPEC standard for dowel pins, particularly those conforming to MS16555 and MIL-P-21143 have very specific tolerances to ensure reliability and consistency in critical military and aerospace applications.
- The MS16555 specifies a straight headless pin with a radius on one end and a chamfer on the other. The material can be Carbon or Alloy Steel or CRES 410 or 416 Stainless Steel. Available diameters range from 1/16 (.0626-.0628) through 1 inch (1.0003-1.0001). Lengths range from 3/16 to 6 inches long. Standard diameter tolerances are +.0002 over the nominal size.
- The M21143 specifies a a straight headless pin made of CRES 303 Stainless Steel. The Mil-P-21143/1 series has a tolerance up to +.0002 over the nominal size. The M21143/2 series has tolerance of .0002 Under its nominal size.
Material Choices
Different applications may require Precision dowel pins made from different materials. The most common materials in the market include:
- Stainless Steel: Offers corrosion resistance and is suitable for applications exposed to moisture or corrosive substances.
- Alloy Steel: Known for its strength and durability, it’s ideal for heavy-duty applications.
- Brass: Often used when there’s a need to avoid sparking or in applications with lower strength requirements (less common).
- Aluminum: Lightweight and resistant to corrosion, aluminum precision dowel pins are suitable for applications where weight is a concern (less common).
Sizes Available
The diameter of precision dowel pins usually varies from 1/32″ to more than 1″, and their lengths span from 3/16″ to multiple inches. Hence, precision dowel pins come in a wide range of sizes, but certain sizes are more commonly used across various manufacturing applications due to their adaptability and compatibility with standard components. Selecting the appropriate size for your specific application is essential for achieving a snug fit, best performance, cost-effectiveness, and durability.
OEM Branded Precision Dowel Pins
Precision Dowel Pins – OEM branded “Precision” dowel pins are manufactured by precision component brands such as Pic Design, WM Berg, Unicorp and others who have their own technical specifications and are not governed by DIN, ISO or ANSI / ASME standards. They are usually only offered in stainless steel through distributors of precision components.
What to Consider Before Buying
- Tolerance: Precision dowel pins have tight tolerances. Ensure that the pins you buy meet the specific tolerances required for your application.
- Environment: Consider the environment in which the pins will be used. If they’ll be exposed to corrosive substances or high temperatures, material choice becomes crucial.
- Custom Needs: If your application requires non-standard sizes or materials, you might need custom-made precision dowel pins.
- Quantity: Depending on the scale of your manufacturing, you may need precision dowel pins in bulk. Purchasing in larger quantities often results in cost savings!
- Supplier Reputation: Always source your precision dowel pins from reputable suppliers known for their quality and consistency.
Precision Dowel Pins at MF Supply
MF Supply is a WBE/WOSB woman owned business, and a trusted supplier of Functional Equivalents, including precision dowel pins, to OEMs, manufacturers, industry, and government. We are precision dowel pin experts, offering the full catalog of dowel pins in Inch, Metric, Military and OEM branded options in a wide selection of materials, sizes and specifications. As stocking distributors, many precision dowel pins are available and ready to ship today from our national distribution centers.
Browse through the links provided below to find the precision dowel pins that you need:
- Mil-Spec Precision Dowel Pins: The full range of commercial and MIL-SPEC parts (M21143, MS16555, MS9390), including parts that are USA made, DFARS and ROHS compliant.
- Inch Precision Dowel Pins: inch sizes to ASME ANSI B18.8.2 standards in alloy steel, stainless steel 18-8, 316, 400 series and hardened. Domestic and Imported options are available.
- Metric Precision Dowel Pins: Metric sizes including DIN 7, DIN 6325, and ISO 2338 and 8734 in alloy steel, A2 & A4 stainless steel
- Precision Series and OEM branded equivalents to PIC, BERG, both Inch & Metric precision dowel pins including Press-Fit A, B and Slip-Fit C series and all MD series pins in 416 and 303 stainless steel.
- Please send us a Request for Quote for any other dowel pins not listed.
- Custom made parts per print.
Your next step?
If you have additional questions or need help in selecting the right precision dowel pins for your next project, don’t hesitate to reach out to us or send us a quote request. Our team of sourcing experts is always ready to assist you on your journey to manufacturing excellence. “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.
Cotter Pin!? What the heck is that?
Posted: August 1, 2023 Filed under: Circle Cotters, Cotter Pin, Fasteners, Hair Pin Clip, Hitch Clips, Inch, Locking Pins, Metric, Mil-Spec, Pins, R Clips, R Pins, Retaining Rings, Safety Pins, Split Pins | Tags: ASME B18.8.1, Bulk Pins, Circle Cotters, Cotter Pins, cotter pins for manufacturers, Fasteners, Functional Equivalent Pins, Hardware, Heavy Duty Fasteners, Hitch Pins, Inch Cotter Pins, Locking Pins, Mechanical Fasteners, Metal, Metric Cotter Pins, Mil-spec Cotter Pins, MS9245, Pins, Pins for manufacturers, R Clips, R Pins, Safety Pins, Split Pins Leave a comment
Welcome back to the next installment of our “what the heck is that” series, where we discuss some of the unique fasteners and electronic hardware that manufacturers use in the design and assembly of their products. This week, we are introducing you to our friend, the Cotter Pin!
Cotter Pins, AKA Split Pins, R Clips or R Pins, Hitch Pins or Hitch Clips, Safety Pins, Circle Cotters, Retaining Pins or Locking Pins, may not be the most renowned piece of hardware, yet they have been quietly holding together our world in more ways than you might imagine. For starters, these pins are non-threaded fasteners, which means that they do not have the risk of loosening due to vibrations as is the case in some screw or bolt connections. Furthermore, Cotter Pins are easy to install/remove and are inexpensive to produce—making them valuable & cost-effective components that guarantee the stability and functioning efficiency of numerous mechanisms across a variety of industries. Keep reading to learn more about these pins and to see if they would be a great fit for your next big project.
What are Cotter Pins?
Cotter Pins are double-structured pins crafted from semi-round wires, that have a loop on one end that serves as a head. The completed component showcases one wire end extending past the other, ending with a chisel-like point.
At the most basic, cotter pins are fasteners that are used to secure various assemblies in place. Typically, they are shaped like a “T” or an “R”, and are inserted into holes that run through the parts to be connected. They are then split into two prongs at the opposite ends, which are then bent to prevent the pins from slipping out and to securely hold the assemblies together.
One key advantage of cotter pins is their inherent simplicity. With their straightforward design, they can be easily installed and detached without the necessity for any specific tools. Furthermore, they offer robust links that prevent the secured pieces from becoming loose or disassembled. When used with castle or slotted nuts, they become a safety locking device.
Another important benefit offered by cotter pins is their ease of removal, which enables swift disassembly or maintenance tasks. When the need arises to dismantle/disassemble components, cotter pins can be easily taken out by straightening or bending back their split ends to their original position. This feature simplifies repair or maintenance operations.
Cotter pins also allow for a certain degree of motion (pivot) depending on how they are installed. This is beneficial in applications like bicycle crank arms where you want the crank to remain secure while also allowing it to rotate.
Who uses Cotter Pins?
Cotter Pins are widely used across a range of industries due to their simplicity, reliability, and versatility. The following are some primary industries where cotter pins are frequently employed:
- Aerospace Industry: Cotter Pins play a vital role in the aerospace industry, where safety and reliability are paramount. They are used to secure critical components such as landing gear, engine parts, and control linkages, ensuring that they remain in position during flight. For example, control linkages encompass control surfaces such as ailerons, elevators, and rudder, as well as the cockpit controls, all of which have numerous pivot points requiring both security and mobility. Cotter Pins are perfectly suited for these uses.
- Automotive Industry: In the automotive industry, cotter pins are utilized in various components, particularly in suspension systems, steering linkages, transmission linkages, wheel assembly, brake system, etc. They secure ball joints, tie rod ends, and other critical parts to ensure safe and reliable vehicle operation.
- Agriculture Industry: In the agricultural sector, cotter pins serve the purpose of fastening elements in various farming machinery, including plows, harrows, and cultivators. Cotter pins also find use in several components of tractors, including anchoring the joint connections in the steering mechanism, maintaining components in the transmission system, and fastening parts in the hydraulic systems.
- Marine Industry: Within the marine industry, Cotter Pins are widely employed to secure clevis pins, turnbuckles, and various fittings in rigging systems and boat hardware. For instance, within marine engines, cotter pins are often used to secure various components and assemblies, such as linkages, connections, and valves. Offering a swift and secure fastening solution, these pins demonstrate reliability even in corrosive marine environments.
- Military and Defense: In the military and defense industries, cotter pins are used to fasten components in weapons, vehicles, aircrafts, naval assets, and communication equipment. In addition, Cotter Pins are deployed in a wide array of other portable gear and systems utilized by military personnel in operational settings. These can encompass everything from temporary bridges and fortification structures.
Other industries that make use of Cotter Pins are: the Industrial and Machinery Industry, where Cotter Pins are used for securing components, such as pulleys, gears, and levers; the Mechanical and Electrical Engineering Industry, where they are used to to fasten parts, such as bolts, nuts, and shafts; the Recreational and Sports Equipment Industry, where they secure various moving parts and components found in recreational equipment, such as bicycles, motorcycles, and sports gear; the Construction and Heavy Equipment Industry, where these pins are used for various applications, including securing hitch pins, linkages, and hydraulic connections; and the Furniture and Manufacturing Industry, where these pins are utilized to secure joints, hinges, and other components in conveyor systems, furniture assembly, and .
What standards, materials and sizes are available?
Materials: Cotter pins can be manufactured from different materials like steel, stainless steel, brass, and aluminum. Steel cotter pins are often enhanced with a zinc coating for added resistance to corrosion. Stainless steel pins are favored for their superior strength and corrosion resistance, particularly in harsh environments.
Sizes: Cotter pins come in a spectrum of sizes, generally ranging from 1/32″ to 3/4″ in diameter and 1/2″ to 6″ in length. The appropriate size is dictated by the application and the dimensions of the hole where the pin will be placed.
Standards: Various nations and regions adopt their own standards for cotter pins. Some of the most frequently used ones include the American Society of Mechanical Engineers (ASME), American National Standards Institute (ANSI), British Standards (BS), Military Specification (Mil-Spec) Standard, and the Deutsches Institut für Normung (DIN).
Commercial Standards include: ASME B18.8.1
Mil-Spec standards include: MS9245
Are there other factors to consider?
YES!! The efficacy of cotter pins are greatly influenced by their proper installation and maintenance. The following list has crucial points to keep in mind.
- Selection: Opt for cotter pins that fit into the hole securely without being overly tight. The length should be sufficient for the prongs to be bent appropriately without leaving excessive overhang.
- Installation: During installation, ensure the prongs are split and bent sufficiently to secure the pins. Tools like pliers or a cotter pin puller can aid in the process of installation and removal.
- Inspection: Regular checks on cotter pins are crucial, particularly in applications under high-stress or where safety is paramount. Look out for signs of wear, corrosion, or distortion, indicating potential need for replacement.
- Replacement: When extracting cotter pins, it’s typically advised to substitute them with new ones, as the bending and straightening process can fatigue the metal, undermining their strength.
Cotter Pins at MF Supply
We currently offer:
- A full range of commercial parts, including parts that are ROHS compliant.
- Inch Cotter Pins are now available for online purchase at our website! Stock sizes include 1/16 through 1/2 in Steel with a Chisel Point and Zinc Plating, as per standard ASME B18.8.1 specifications.
- Mil-spec Cotter Pins MS9245 are also available for online purchase. Stock sizes include 1/32 through 5/32 in T321 Stainless Steel , with Manufacturers Certifications.
- Please send a Request for Quote for any other Cotter Pin not listed on our website.
- Brand names and generic equivalents.
- Custom made parts per print.
For more detailed information on Cotter Pins or other products, 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.
Over 1.5K Dowel Pins, Cotter Pins, Spring Pins, and more Now in Stock!
Posted: July 7, 2023 Filed under: Coiled Spring Pin, Cotter Pin, dowel pin, Fasteners, Hair Pin Clip, Hitch Pin Clip, Inch, Metric, Metric Dowel Pins, Pins, PRECISION DOWEL PIN, Slotted Spring Pin | Tags: Coiled Spring Pins, Cotter Pins, Dowel Pin, Fasteners, Functional Equivalent Pins, Hair Pin Clips, Hardware, Hitch Pin Clips, Mechanical Fasteners, Metal, Pins for manufacturers, Precision Dowel Pin, Slotted Spring Pins, Spring Pins Leave a comment
Are you looking for Precision Dowel Pins, Cotter Pins, Spring Pins or Hair/Hitch Pin Clips?
If you are in need of any specific type of pins or clips for your next big project, you have arrived at the right place!
MF Supply is a WBE/WOSB woman owned business, and a trusted supplier of Functional Equivalent Pins & Clips to OEMs, Manufacturers, Industry, and Government. We offer a wide selection of over 1,500 inch, metric & Mil-Spec Pins, in Alloy Steel, Steel, and Stainless Steel materials, that are perfect for a myriad of applications. You’ll find in stock Pins in many sizes including major brands and equivalents to Blue Devil, Pic Design, WM Berg, Misumi and Unicorp; so you can choose the ones that best suit your needs.
Who uses Pins & Clips?
Pins & clips are commonly used on many industries, such as automotive, aerospace, electronic, machinery, tooling, agriculture, construction and many more where reliable and convenient fastening is a must. Continue reading to learn more about the characteristics of each pin or clip currently on our website, and how they could be of use on your next project.
Coiled Spring Pins: Coiled Spring Pins, also known as Spiral Pins or Coiled Pins, are headless, hollow pins with chamfered ends, made by shaping or wrapping a steel sheet into a slightly larger diameter than the standard size. Unlike the slotted pins variety, these pins are distinguished by their multiple walls.
Uses: These pins are frequently used to join and fasten two or more components together. When the pins are inserted into pre-drilled holes, their spiral shape allows them to expand and exert radial pressure against the sides of the hole. This creates a secure and snug fit/connection. Apart from their fastening functionalities, Coiled Spring Pins can also serve as effective retaining features. They have the ability to secure various items, such as gears, pulleys, or bearings, onto shafts, effectively preventing axial movement or slippage. Moreover, these pins can be utilized to accurately position and retain other components, ensuring precise alignment and preventing undesired movement.
Cotter Pins: Cotter Pins, also known as Split Pins, are double bodied pins formed from half-round wire, a loop at one end of which provides a head. The finished part has one end of the wire extending beyond the other end, with a chiseled point.
Uses: These pins are used to anchor various assemblies by inserting them into a drilled hole in the shaft or pin and spreading the points to hold the assembly in position. When used with castle or slotted nuts, it becomes a safety locking device. An important benefit offered by Cotter Pins is their ease of removal, which enables swift disassembly or maintenance tasks. When the need arises to dismantle/disassemble components, cotter pins can be readily taken out by straightening or bending back the split end to its original position. This feature simplifies repair or maintenance operations.
Precision Dowel Pins: These pins are solid headless straight pins with a closely controlled diameter. Applications include a wide variety of uses, such as plug gage, hinge, or shaft. They are typically cylindrical in shape and made from materials such as hardened steel, stainless steel, or aluminum.
Uses: Precision Dowel Pins are widely utilized to achieve precise alignment and positioning of components. These pins undergo meticulous machining processes and are manufactured with strict tolerances to guarantee a snug and accurate fit. Precise tolerances of Dowel Pins make them excellent for achieving proper alignment of parts in high-speed assemblies, or as roller bearings in bus/truck wheel housings. By inserting them into corresponding holes in two or more parts, the dowel pins guarantee proper alignment and positioning of the parts in relation to one another. These dowel pins serve as reference points or datums, ensuring accuracy and precision throughout the assembly process.
Slotted Spring Pins: Sometimes referred to as Roll Pins, Expansion Pins, C-Pins or Tension Pins, Slotted Spring Pins are hollow, headless pins, slit longitudinally, having controlled lengths with chamfered ends, formed to a diameter somewhat greater than that of the hole into which they are to be assembled. These pins are cylindrical in shape and are able to compress and expand upon insertion into a hole. Additionally, they are commonly crafted from materials such as carbon steel or stainless steel.
Uses: Slotted spring pins are used for the purpose of securing and fastening components together. The slots present in the pin allow for compression during insertion and radial expansion, which generates outward pressure against the walls of the pre-drilled hole. This inherent self-retaining characteristic guarantees the pin’s retention and delivers a secure method of fastening. Spring pins are economical because they can simplify product design by replacing more expensive fasteners such as taper pins, set screws and straight pins. Stainless steel Spring Pins are commonly used in electronics and food industries.
Hair/Hitch Pin Clips: Hitch Pin Clips, also known as Hair Pin Clips, Bridge Pins or R-Clips, are double-bodied pins formed from round wires. These pins are formed in a way where one end is bent approximately 180° so that the two resulting sides meet or come close to meeting. The final pins have one side that remains straight, while the opposite side has one or more turns permanently formed into it.
Uses: Hair/Hitch Pin Clips are designed to serve as a mating part to several other pins. They provide a hassle-free way to attach and detach components without the need for additional tools or complicated fastening mechanisms. Hitch Pin Clips also act as a safety feature, ensuring that the connected components remain intact during operation. When the need arises to remove or replace a pin, Hitch Pin Clips present a simple and time-saving solution. By simply compressing the curved end and sliding it out of the hole, the clip can be easily removed. Hence, this allows for quick disassembly, maintenance, or component replacement without the requirement of specialized tools or lengthy procedures.
In-Stock Pins & Clips at MF Supply
We currently have in stock over 1,500 Pins & Clips in inch, metric & Mil-Spec sizes. The most common material options available are: alloy steel with bright or ebony black oxide finishes; steel with thermal black, mechanical zinc, zinc, and zinc phosphate finishes; and passivated stainless steel—including series A2, T321, 18-8, 300, 303, 316, 400 416, & 420.
Browse through the links provided below to find the Pins or Clips that you need, and that are currently available on our website.
- Inch Coiled Spring Pins: Stock sizes include 1/16 to 3/8 in Steel with a Thermal Black finish, and in 420 Stainless Steel.
- Inch Cotter Pins: Stock sizes include 1/16 to 1/2 in Steel with a Chisel Point and Zinc Plating, as per standard ASME B18.8.1 specifications.
- Mil-Spec MS9245 Cotter Pins: Stock sizes include 1/32 through 5/32 in T321 Stainless Steel.
- Inch Precision Dowel Pins: Interference / Press Fit & Slip Fit Dowel Pins in 300 Series Stainless Steel; Dowel Pins in 316 Series Stainless Steel; and Dowel Pins in Alloy Steel with Bright or Ebony Black Oxide finishes.
- Metric Precision Dowel Pins: Stock sizes include M1 through M10 diameters in 18-8, 300, 303, A2 Series Stainless Steel; and M2 through M10 diameters in 416 Stainless Steel.
- Mil-Spec Precision Dowel Pins: MS16555-1 through MS16555-145, MS16555-301 through MS16555-444 & MS16555-601 through MS16555-744, including between-spec sizes; and Mil-P-21143 Series in 303 Stainless Steel.
- Inch Slotted Spring Pins: Stock sizes include 1/16 to 1/2 in Steel wth a Thermal Black or Mechanical Zinc Finish, 420 Stainless Steel, and Stainless Steel materials—as per standard ASME B18.8.2 specifications.
- Metric Slotted Spring Pins: Stock sizes include M2 to M8 in Steel with a Thermal Black Finish, as per standard ISO 8752 specifications.
- Mil-Spec MS16562 Slotted Spring Pins: Stock sizes include 1/16 through 1/2 in Steel Zinc Phosphate.
- Inch Hair Pins / Hitch Pin Clips: Stock sizes include .028 to .243 in Steel Zinc.
Our Pins & Clips are competitively priced. Don’t wait! Visit our website today to place an order, or Request a Quote and we will follow up with you.
Can’t find what you’re looking for?
Can’t find what you are looking for on the list? Reach out to us today, and 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!
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.
Over 2.6K Plastite® & Taptite® Alternative Screws Now in Stock!
Posted: June 20, 2023 Filed under: Fasteners, Inch, Metric, Plastite Alternative Screws, Self-Tapping Screws, Taptite Alternative Screws, Thread-Cutting Screws, Thread-Forming Screws, Thread-Rolling Screws, Threaded Fasteners, Trilobular Fasteners | Tags: Fasteners, Hardware, Mechanical Fasteners, Metal, Plastic, Plastite Alternative Screws, Plastite Alternative Screws for plastics, Plastite Brand Generic Alternative Screws, Taptite Alternative Screws, Taptite alternative screws for metal, Taptite alternative screws in inch and metric sizes, Thermoplastic, Thread-Forming Screws, Thread-Rolling Screws, Threaded Fasteners, Trilobular Point, Trilobular Screws Leave a comment
Are you looking for Plastite® or Taptite® Brand Generic Alternative Screws?
If you are in need of Trilobular Plastite® or Taptite® Alternative Screws for your upcoming project, you have arrived at the right destination!
MF Supply is a WBE/WOSB woman owned business, and a trusted supplier of Functional Equivalents to Plastite® and Taptite® Brand screws. We offer a wide selection of over 2,600 inch and metric trilobular thread-rolling / thread-forming screws, in Steel or Stainless Steel materials, that are perfect for a variety of plastic/thermoplastic and soft metal applications. You’ll find in stock Plastite® and Taptite® Alternative Screws with different head styles, drives, thread sizes, and lengths; so you can choose the ones that best suit your needs.
Common Uses for Plastite® Alternative Screws
Plastite® Alternative Screws are used in many industries that rely on fastening solutions for plastic/thermoplastic applications. The main purpose for these screws is to create threads within the plastic material, as they are being driven in, in order to create dependable and secure fastening solutions for holding plastic components together.
Some of the industries that benefit from Plastite® Alternative Screws include the Consumer Goods Industry, where they utilize this fastening solution to secure plastic parts in furniture, plastic containers, toys, and sporting goods; the Appliances Industry, where these screws are used to assemble many plastic parts/components that contribute to the overall durability and functionality of the appliances, such as dishwashers, dryers, washing machines, refrigerators, and many other household appliances; the Electronics and Electrical Industries, where these screws are touted for their resistance to loosening due to vibration, and for their fastening use in circuit boards, cable management systems, electrical components, and other plastic surfaces. In addition to the previous industries, the Industrial Equipment Industry, Automotive Industry, Packaging Industry, and many more, also make great use of these handy fasteners!
Common Uses for Taptite® Alternative Screws
Taptite® Alternative Screws carry similar benefits to the ones Plastite® Alternative Screws offer, but with the added benefit that they can also be used on soft metal applications, such as aluminum, mild steel, brass, copper and magnesium. In this sense, these screws are used in many industries where secure and efficient fastening is a must!
Some of the industries that make use of Taptite® Alternative Screws are: the Aerospace Industry, where they use these screws in components that require resistance to vibration, such as aircraft components, and aerospace structures and equipment; the Electronics Industry, where they use many of these screws to secure electronics, such as smart phones, computers, circuit boards, electronic enclosures, and other consumer electronics; the Metal Fabrication Industry, where these guys do the job of fastening metal assemblies and metal structures securely in place. Other industries that make use of these screws are the Manufacturing and Assembly Industry, the Automotive Industry, and the Machinery and Equipment Industry—where Taptite® Alternative Screws are commonly used in the assembly of construction equipment, industrial and agricultural machinery, and other mechanical systems.
In-Stock Plastite® & Taptite® Alternative Screws at MF Supply
We currently have in stock over 2,600 Plastite® and Taptite® Alternative Screws in inch and metric sizes, and in a variety of head styles, drives, and lengths. The most common material options available are: steel—with a black oxide, black zinc, zinc, zinc green, or zinc yellow finish—A2 Steel, 410 stainless steel, and stainless steel materials.
Below is a list of the Trilobular Thread-Rolling / Thread-Forming Plastite® and Taptite® Alternative Screws currently available on our website!
- Inch Plastite® Alternative Screws
- Metric EJOT PT® Alternative Screws
- Metric Plastite® / Plas-Fix® 45 Alternative Screws
- Inch Taptite® Alternative Screws
- Metric DIN 7500 Taptite® Alternative Screws
Our Plastite® and Taptite® Alternative Screws are competitively priced. Don’t wait and visit our website today to place an order, or reach out to us to Request a Quote!
Can’t find what you’re looking for?
Can’t find what you are looking for on the list? Reach out to us today, and 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!
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.
Taptite® Alternative Screws!? What the heck are those?
Posted: June 15, 2023 Filed under: Fasteners, Inch, Metric, Self-Tapping Screws, Taptite Alternative Screws, Thread-Forming Screws, Thread-Rolling Screws, Threaded Fasteners, Trilobular Fasteners | Tags: Din 7500, Duo-Taptite Alternative Screws, SAE J81, Self-Tapping Screws, SEMS, Taptite Alternative Screws, Taptite alternative screws for metal, Taptite alternative screws in inch and metric sizes, Taptite Brand Generic Alternative Screws, Taptite Pro Alternative Screws, Thread-Forming Screws, Thread-Rolling Screws, Threaded Fasteners, Trilobular Screws, What are Taptite alternative screws? Leave a comment
Welcome back to the next installment in our “what the heck is that” series, refreshed for 2023! In this series we discuss some of the unique fasteners and electronic hardware that manufacturers use in the design and assembly of their products. Today, we will introduce you to Taptite® Alternative Screws! Like our friends, the Plastite® Alternative Screws, these fasteners are functional equivalents to a trademark registered branded product. Taptite®, Duo-Taptite®and Taptite Pro® are trademarked by REMINC/CONTI.
What are Taptite® Alternative Screws?
Taptite equivalent fasteners are high performance thread-rolling screws (sometimes called thread-forming or trilobular) that create reusable threads in soft metal materials, such as plastic, aluminum, mild steel, brass, copper and magnesium. Their design include a trilobular rolling or thread-forming tip that grants them thread-forming, thread-rolling action as they are driven into the material. This thread-forming action creates a tight and secure connection, which in turn enhances the holding power of the screws in the plastic and soft metal component.
These fasteners need pre-drilled holes, but they don’t need pre-tapped or pre-threaded holes. This is because, when their threads are driven into the application, they tend to displace the material on the walls, inside the holes, in order to form mating threads. These newly formed internal mating threads tighten the screws securely in place and provide resistance to loosening caused by vibrations. Hence, Taptite® Alternative Screws are designed for applications where stability is crucial, but also to help eliminate some of the assembly costs associated with tapping procedures.
It is also worth mentioning that Taptite Alternative screws come in inch & metric sizes, and in a variety of heads, drives, materials and finishes that are designed for a wide range of plastic and soft metal fastening solutions.
Who uses Taptite® Alternative Screws?
Taptite® Alternative Screws are designed with an optimized thread-forming / thread-rolling action that enables efficient engagement, provides increased holding power, clamp load retention, and resistance to loosening due to vibrations. Any plastic or soft metal application with a pre-drilled bore/hole that needs to reliably secure the mating of components, and that needs to eliminate the need for additional tapping, threading or locking operations is a great candidate for using this type of fasteners!
Taptite® Alternative Screws are widely used across various plastic and soft metal applications in many industries, including: aerospace, electronics, appliances, manufacturing, machinery and equipment, and many more. They are also very common in the automotive industry. For instance, many manufacturers have used these screws to assemble components onto the exterior and interior of aluminum engines.
What materials and sizes are available?
Taptite® Alternative Screws are readily available off the shelf in steel—with a black oxide, black zinc, zinc, zinc green, or zinc yellow finish—410 stainless steel, and stainless steel materials. In addition, inch Taptite® Alternative Screws follow the SAE J81 standard, and their metric counterparts follow the Din 7500 standards.
Standard stock sizes for the head diameter are Inch from 2-56 to 1/2-13, and Metric from M2-0.4 to M8-1.25. Popular thread classes include partial, SEMS, and full threads.
Are there other factors to consider?
YES! It is generally recommended to pre-drill or pre-punch holes, with an increased length of engagement, to hold the entire length of the screws in the plastic or metal material/application. This should be done in order to ensure proper thread formation, fastener fracture—if it is the preferred failure mode—and to minimize the risk of material damage.
Taptite® Alternative Screws at MF Supply
We currently offer:
- A full range of commercial parts, including parts that are ROHS compliant.
- Inch and Metric Din 7500 Taptite® Brand Generic Alternative Screws are now available for online purchase at our website!
- Brand names and generic equivalents.
- Custom made parts per print.
For more detailed information on Taptite® Alternative Screws or other Trilobular Thread-Rolling / Thread-Forming 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.
Over 1,700 Standoffs and Spacers in stock!
Posted: March 31, 2023 Filed under: Electronic Hardware, Fasteners, Hex Spacers, Hex Standoffs, Inch, Metric, Panel Fasteners, Round Spacers, Round Standoffs, Spacers, Standoffs, Standoffs and Spacers, Threaded Fasteners | Tags: Aluminum, Brass, Fasteners, Hardware, Hex Spacers, Hex Standofffs, Hexagonal Spacers, Hexagonal Standoffs, Inch Spacers, Inch Standoffs, Metric Spacers, Metric Standoffs, Nickel, Nickel Plating, Nylon, Passivated Plating, Round Spacers, Round Standoffs, Self-Clinching, Self-clinching Standoffs, Spacers, Stainless Steel, standoffs, Standoffs Female, Standoffs Female Threaded, Standoffs Male-Female, Standoffs Male-Female Threaded, Steel, Zinc, Zinc Plating Leave a comment
Are you looking for Standoffs or Spacers? Look no further than MF Supply!
MF Supply is a trusted supplier of Standoffs and Spacers for Manufacturers and Industry. We now offer a wide selection of over 1,700 Standoffs and Spacers in stock & available for purchase on our website. You’ll find in stock Inch & Metric, Round & Hex, and in a variety of sizes and materials—such as Aluminum, Brass, Nylon, Steel and Stainless Steel. We offer Brand Names and/or Equivalents to National Catalog and OEM brands including: Amatom, Captive, HH Smith, Grainer, Keystone, Lyn-tron, McMaster-Carr, MSC, Microplastics, RAF, Unicorp.
Common Uses of Standoffs and Spacers at MF Supply
Below is a brief explanation of what Standoffs and Spacers are used for.
- Spacers: Spacers are commonly used in equipment or machines that need to maintain a specific distance between components, to prevent over-tightening or to distribute loads.
- Standoffs: Standoffs, like spacers, are also used to create a gap or distance between two surfaces, but are also used to mount or fasten electronic components such as circuit boards.
In-Stock Standoffs and Spacers at MF Supply
At MF Supply’s website, we currently offer over 1,700 Standoffs and Spacers in round or hexagon shapes. They also come in many sizes, and materials, which include Aluminum, Brass with Nickel plated finish, Nylon, Steel and Stainless Steel. Below is a list of the Standoffs and Spacers currently available on our website.
Hexagon Spacers
Round Spacers
Hexagon Female Threaded Standoffs
Hexagon Male-Female Threaded Standoffs
Metric Hexagon Male-Female Threaded Standoffs
Round Female Threaded Standoffs
Round Male-Female Threaded Standoffs
Self-Clinching Standoffs
- Stainless Steel – Type BSOS & Series CFBSOS
- Steel Zinc – Type BSO
- Steel Zinc – Type SO & Series CFSO
Make ordering the Standoffs and Spacers you require a breeze by visiting our website today, or reach out to us to request a quote.
What the heck are Standoffs and Spacers anyway?
Would you like to learn more about Standoffs & Spacers? Don’t sweat it! Read our recent blog post “Standoffs and Spacers!? What the heck are those?“, from our “What the Heck is that” series to learn more about this Category of Electronic Hardware.
Can’t find what you’re looking for?
If the OEM brand, size, material or plating you need is not listed above or on our website, or you need a Mil-Spec, DFARs or domestically manufactured part, Request a Quote today, and our MF Supply team of sourcing experts can help 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.
Standoffs and Spacers!? What the heck are those?
Posted: March 28, 2023 Filed under: Electronic Hardware, Female-Female, Hex Spacers, Hex Standoffs, Inch, Male-Female, Male-Male, Metric, Panel Fasteners, Round Spacers, Round Standoffs, Spacers, Standoffs, Standoffs and Spacers | Tags: Electronic Hardware, Hex Spacers, Hex Standoffs, Inch Spacers, Inch Standoffs, Industrial, Lyn-tron, Metric Spacers, Metric Standoffs, NAS1829, NAS1830, NAS1831, Round Spacers, Round Standoffs, Spacers Hex, Spacers Round, Standoffs and Spacers, Standoffs Female, Standoffs Female-Female, Standoffs Hex, Standoffs Male, Standoffs Male-Female, Standoffs Round Leave a comment
What the heck are Standoffs and Spacers?
Welcome back to our “What the heck is that?” series, refreshed for 2023. We close out March by (re) introducing you to Standoffs and Spacers. According to the dictionary, a Standoff is defined as “a stalemate or a deadlock between two equally matched opponents”. In the world of manufacturing and assemblies, Standoffs, and their cousin the Spacer, have an altogether different meaning which we will uncover today.
What are Standoffs and Spacers?
Often classified as Electronic Hardware, or Panel Hardware, Standoffs are hex or round shaped fasteners which have a body and two threaded ends. The threaded ends can either be an internally threaded opening (female) or an externally threaded post (male). They are commonly used to mechanically support and electrically connect and position components within assemblies.
Spacers are similar to Standoffs, however, Standoffs are threaded on both ends, and Spacers are unthreaded with an inside clearance hole.
Who uses Standoffs and Spacers?
Look inside an assembled circuit board, and you may be greeted by a variety of Standoffs and Spacers. In the world of Electronic Hardware, they are the standard for connecting and mounting circuit boards, panels, doors, and gears. Both are commonly used to properly position parts within an assembly, to reduce component contact, to elevate stacked sections, to ensure enough room for heat to dissipate, and to separate or create space between two objects. These guys are workhorses!
What do I need to consider when selecting Standoffs and Spacers?
Standoffs and Spacers are available in a variety of styles based on four main attributes: 1) shape 2) outer diameter of the body 3) body length and 4) thread size or clearance hole. Standoffs have a fifth attribute, thread type (we like to call it gender), as defined below.
Standoffs and Spacers can be hex, round or square shaped. The most common diameter of the body is ¼, but many other sizes are available. Metric diameter standards are M4.5 and M6, though larger sizes are available. Standard body lengths range from ¼ x 2″. Clearance holes and thread generally range from #2 through ¼. Special lengths and sizes are available – just ask!
Standoffs come in three main styles (genders):
- Female-female: can be fully threaded or partially threaded on each end.
- Male-female: have internal female threads on one end and male threads on the other. Threads are generally the same size.
- Male-male: have external threads on both ends which may be of differing thread size.
What Materials are available?
Common materials include aluminum, brass, plastic/nylon, steel, and stainless steel. Common platings include clear anodized, nickel, gold iridite and zinc plated. There are over 20 common plating’s available! Here are some of the most common materials:
- Aluminum: It is popular because of its ratio of weight to strength. It is light, non-magnetic, performs well in severe temperatures, and has insulating properties.
- Brass: It is used in making high-quality standoffs. It is conductive, resists corrosion, and is non-magnetic. It is costlier and heavier than aluminum and is usually plated zinc or nickel. It can be soldered for grounding.
- 18-8 Stainless Steel: It is strong, conductive, and nonmagnetic. This stainless steel offers excellent corrosion resistance.
- Zinc plated Steel: Steel is used for its strength, but it is heavier than aluminum and does not resist corrosion like Stainless steel, aluminum or brass. It is usually zinc plated for added corrosion resistance.
- Nylon 6/6: It is superlight, nonconductive, and resistant to chemicals and solvents. Nylon absorbs moisture, which can affect dimensions and other properties.
Lesson Learned, and considerations when selecting and using Standoffs and Spacers
- Standoffs are sometimes referred to by their brand names, which can often be substituted by generic equivalents. Popular brands include: Amatom, Concord, Globe, H.H. Smith, Lyn-tron, Microplastics, Keystone, Pem, RAF, Unicorp.
- To measure a Standoff or Spacer, measure the outside diameter of the body, the length of the body and the thread size. Determine if the standoff is a female-female, male-female or male-male. A typical Standoff might measure as follows: 1/4 hex X 1/2 long X 8-32 thread male-female aluminum standoff. This exact standoff is made and branded by at least 10 manufacturers. Note: the length of the male threaded post is standard and is not called out.
- Standoffs and Spacers sometimes show up under their Mil-spec numbers, which can be crossed to commercial equivalents. Some common Mil-spec series include NAS42, NAS43, NAS61, NAS1056, NAS1057, NAS1829, NAS1830, NAS1831.
To see if using alternative brands or functional equivalents will work for your business, refer to our handy guide.
Standoffs and Spacers at MF Supply
Here at MF Supply, we supply some of the most common and unusual Standoffs and Spacers, including:
- The full range of commercial and mil-spec parts in both inch and metric.
- Specials sizes, materials and platings. Just try to stump us!
- We are authorized distributors for Amatom, Concord, Lyn-tron, Microplastics and RAF and offer the full range of brand names and equivalents.
Visit our MF Supply website for more details or to check our Spacers and Standoffs currently in stock.
And if you don’t see it listed, as always, ask us. Our MF Supply team of sourcing experts can help you answer any questions or concerns you might have about our products. “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.
Buyer’s Guide to Set Screws Updated for 2023
Posted: March 22, 2023 Filed under: Fasteners, Inch, Metric, Set Screw, Socket Products, Socket Set Screws, Socket Set Screws Cone Point, Socket Set Screws Cup Point, Socket Set Screws Flat Point, Socket Set Screws Half-Dog Point, Socket Set Screws Knurled Cup Point, Socket Set Screws Nylon Tip, Socket Set Screws Oval Point, Threaded Fasteners | Tags: ASME B18.3, Cone Point, Cup point, Fasteners, Flat Point, Half-Dog, Hardware, Knurled Cup Point, Mechanical Fasteners, Nylon Tip, Oval Point, Set Screw, Socket Set Screws, Threaded Fasteners 1 Comment
8 Things to Know When Buying Set Screws
Our goal is to help simplify the buying process for this sometimes-complex category of fasteners by detailing the most critical things you must know when buying Set Screws.
1. What is a Set Screw?
A Set Screw is a fully threaded headless screw that is traditionally classified within the socket family of products. It is generally used to fasten an object within or against another object by exerting pressure rather than holding parts together with threads. It is normally used without a nut.
2. Who uses Set Screws?
Set Screws are used in many industrial and mechanical devices, particularly in assemblies with rotating items such as pulleys or wheels, where a component is locked onto a shaft. Designed to fasten one object inside another, Set Screws pass right through a threaded hole in the outer object and are tightened against the inner object. Pretty cool, right?
3. What materials and platings are available?
The most common Set Screw material options are alloy steel and stainless steel. Brass is a less popular and less available option.
The most commonly available material is hardened alloy steel with a thermal black oxide finish, as per ASME B18.3 and a Rockwell hardness of C45-53.
Stainless steel grades 18-8/303 and Metric A2 are also commonly available. Other exotic materials such as brass, 316 or A4 stainless steel, 4140 steel, 416, A286 or special finishes including zinc plating may be available for special order with a lead time.
Socket Set Screws come standard with 3A thread fit. Some sizes and materials may be available with nylon patches or pellets.
Set screws with a slotted drive are made with a 2A thread fit.
4. What sizes are available?
In our experience, Set Screws are most commonly available in sizes 2-56 through 1″ diameter in imperial and M2-M24 in metric diameters with a hex socket drive on one end and a cup point on the other.
5. What information should I provide to get an accurate quote?
The easiest way to order is by part number. The most popular manufacturers of Set Screws are Holo-Krome, Blue Devil and Misumi, along with the national catalog houses like McMaster-Carr, Grainger and MSC Industrial.
If you don’t have a part number, you’ll need to provide the diameter and thread, the body length, drive and tip type, material and plating.
6. Other than size, material and plating, what other options are available?
The other main considerations when selecting Set Screws are the drive and the point. We offer a comprehensive look at your options below.
Drives: The most common and readily available drive style is a hexagonal socket drive (think Allen wrench), however, Set Screws may also be available in slotted, six-lobe (Torx) and spline drives for certain sizes.
Points: This is where it gets interesting. The point of the Set Screw determines its function. Seven (yes, seven!) main points are available, each serving a slightly different purpose.
- Cup – The most common style, which is slightly cupped to meet the surface of the inner object. Used for permanent or semi-permanent installations, the Cup point provides a high level of security and control. (Metric DIN 916)
- Knurled Cup – A variation of the Cup point, this style has knurls for a stronger grip.
- Cone – A very sharp point wedges into the inner object to hold it permanently in place. With the highest holding power of all Set Screw styles, the Cone point is used for permanent settings. Note: Cone point Set Screws may cause damage to the inner object which might not be desirable in some applications. (DIN 914)
- Flat – Designed for flexibility when frequently resetting or relocating objects on hard steel shafts where minimal damage to the shaft is desired. Affordable and easy to install, Flat point Set Screws can be moved without damaging the inner object. (DIN 913)
- Oval – The Oval point is the inverse of the Cup point. The small rounded contact surface allows slight adjustments without loosening the screw and causes minimal surface damage to the inner object. The Oval point Set Screw is the most practical type for situations where the inner and outer objects require regular adjustments.
- Half-Dog – Sometimes offered as a Full-Dog point, its protruding tip locks within a mating hole or slot in the shaft, for permanent setting. Half-dog/Dog points are sometimes used instead of a dowel pin. (DIN 915)
- Nylon tip – Resembling a Half-Dog point, the soft nylon tip is used to grip curved or textured surfaces.
7. What other factors should I consider?
We’ve covered the most common variables including head style, diameter and thread, length, material and plating or finish. Does your project specify Inch (Imported or Domestic), Metric, OEM brand or Mil-Spec? Here are a few of the other considerations you might be faced with based on the project and the bill of materials:
We’ve covered the most common variables including head style, diameter and thread, length, material and plating or finish. Here are a few of the other considerations you might be faced with based on the project and the bill of materials:
Do you need domestic parts (i.e. Holo-Krome) or will imported screws work?
Do you require parts that conform to a specific mil-spec number, such as AN565, NAS1081, MS18063, MS18064, MS18065, MS18066, MS18067, MS18068, MS21342, MS51017, MS51021, MS51022, MS51023, MS51025, MS51026, MS51029, MS51031, MS51033,MS51038, MS51040, MS51045, MS51047, MS51053, MS51476, MS51477, MS51963, MS51964, MS51965, MS51966, MS51973,MS51974, MS51976, MS51977, MS51981, MS51982 with their exacting tolerances and traceability, or will standard commercial parts work?
Does your bill of materials call out a specific manufacturer, such as Holo-Krome or Blue Devil?
Make sure you have the correct installation hardware (Allen wrench or hex key) to go along with your Set Screws.
8. What level of certification is required?
Generally, a Certificate of Conformance or a COC is sufficient for your customer. Full certification with material certs, DFARS certification and test reports are often available for USA-made and mil-spec parts for a fee.
- The full range of commercial and Mil-spec parts, including parts that are DFARS and ROHS compliant.
- Brand names (Holo-Krome, Blue Devil) and generic equivalents.
- Custom-made parts per print in non-standard and exotic materials and finishes.
For more detailed information about Set Screws, to request a line card, or to send an RFQ, visit our website. And if you don’t see what you need listed, as always, 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.
Buyer’s Guide to Set Screws
Posted: January 29, 2018 Filed under: Fasteners, Inch, Metric, Set Screw, Socket Products, Socket Set Screws, Socket Set Screws Cone Point, Socket Set Screws Cup Point, Socket Set Screws Flat Point, Socket Set Screws Half-Dog Point, Socket Set Screws Knurled Cup Point, Socket Set Screws Nylon Tip, Socket Set Screws Oval Point, Threaded Fasteners | Tags: ASME B18.3, Cone Point, Cup point, Fasteners, Flat Point, Half-Dog, Hardware, Knurled Cup Point, Mechanical Fasteners, Nylon Tip, Oval Point, Set Screw, Socket Set Screws, Threaded Fasteners Leave a comment8 Things to Know When Buying Set Screws
Our goal is to help simplify the buying process for this sometimes-complex category of fasteners by detailing the most critical things you must know when buying Set Screws.
1. What is a Set Screw?
A Set Screw is a fully threaded headless screw that is traditionally classified within the socket family of products. It is generally used to fasten an object within or against another object by exerting pressure rather than holding parts together with threads. It is normally used without a nut.
2. Who uses Set Screws?
Set Screws are used in many industrial and mechanical devices, particularly in assemblies with rotating items such as pulleys or wheels, where a component is locked onto a shaft. Designed to fasten one object inside another, Set Screws pass right through a threaded hole in the outer object and are tightened against the inner object. Pretty cool, right?
3. What materials and platings are available?
The most common Set Screw material options are alloy steel and stainless steel. Brass is a less popular and less available option.
The most commonly available material is hardened alloy steel with a thermal black oxide finish, as per ASME B18.3 and a Rockwell hardness of C45-53.
Stainless steel grades 18-8/303 and Metric A2 are also commonly available. Other exotic materials such as brass, 316 or A4 stainless steel, 4140 steel, 416, A286 or special finishes including zinc plating may be available for special order with a lead time.
Socket Set Screws come standard with 3A thread fit. Some sizes and materials may be available with nylon patches or pellets.
Set screws with a slotted drive are made with a 2A thread fit.
4. What sizes are available?
In our experience, Set Screws are most commonly available in sizes 2-56 through 1″ diameter in imperial and M2-M24 in metric diameters with a hex socket drive on one end and a cup point on the other.
5. What information should I provide to get an accurate quote?
The easiest way to order is by part number. The most popular manufacturers of Set Screws are Holo-Krome, Blue Devil and Misumi, along with the national catalog houses like McMaster-Carr, Grainger and MSC Industrial.
If you don’t have a part number, you’ll need to provide the diameter and thread, the body length, drive and tip type, material and plating.
6. Other than size, material and plating, what other options are available?
The other main considerations when selecting Set Screws are the drive and the point. We offer a comprehensive look at your options below.
Drives: The most common and readily available drive style is a hexagonal socket drive (think Allen wrench), however, Set Screws may also be available in slotted, six-lobe (Torx) and spline drives for certain sizes.
Points: This is where it gets interesting. The point of the Set Screw determines its function. Seven (yes, seven!) main points are available, each serving a slightly different purpose.
- Cup – The most common style, which is slightly cupped to meet the surface of the inner object. Used for permanent or semi-permanent installations, the Cup point provides a high level of security and control. (Metric DIN 916)
- Knurled Cup – A variation of the Cup point, this style has knurls for a stronger grip.
- Cone – A very sharp point wedges into the inner object to hold it permanently in place. With the highest holding power of all Set Screw styles, the Cone point is used for permanent settings. Note: Cone point Set Screws may cause damage to the inner object which might not be desirable in some applications. (DIN 914)
- Flat – Designed for flexibility when frequently resetting or relocating objects on hard steel shafts where minimal damage to the shaft is desired. Affordable and easy to install, Flat point Set Screws can be moved without damaging the inner object. (DIN 913)
- Oval – The Oval point is the inverse of the Cup point. The small rounded contact surface allows slight adjustments without loosening the screw and causes minimal surface damage to the inner object. The Oval point Set Screw is the most practical type for situations where the inner and outer objects require regular adjustments.
- Half-Dog – Sometimes offered as a Full-Dog point, its protruding tip locks within a mating hole or slot in the shaft, for permanent setting. Half-dog/Dog points are sometimes used instead of a dowel pin. (DIN 915)
- Nylon tip – Resembling a Half-Dog point, the soft nylon tip is used to grip curved or textured surfaces.
7. What other factors should I consider?
We’ve covered the most common variables including head style, diameter and thread, length, material and plating or finish. Does your project specify Inch (Imported or Domestic), Metric, OEM brand or Mil-Spec? Here are a few of the other considerations you might be faced with based on the project and the bill of materials:
We’ve covered the most common variables including head style, diameter and thread, length, material and plating or finish. Here are a few of the other considerations you might be faced with based on the project and the bill of materials:
Do you need domestic parts (i.e. Holo-Krome) or will imported screws work?
Do you require parts that conform to a specific mil-spec number, such as AN565, NAS1081, MS18063, MS18064, MS18065, MS18066, MS18067, MS18068, MS21342, MS51017, MS51021, MS51022, MS51023, MS51025, MS51026, MS51029, MS51031, MS51033,MS51038, MS51040, MS51045, MS51047, MS51053, MS51476, MS51477, MS51963, MS51964, MS51965, MS51966, MS51973,MS51974, MS51976, MS51977, MS51981, MS51982 with their exacting tolerances and traceability, or will standard commercial parts work?
Does your bill of materials call out a specific manufacturer, such as Holo-Krome or Blue Devil?
Make sure you have the correct installation hardware (Allen wrench or hex key) to go along with your Set Screws.
8. What level of certification is required?
Generally, a Certificate of Conformance or a COC is sufficient for your customer. Full certification with material certs, DFARS certification and test reports are often available for USA-made and mil-spec parts for a fee.
- The full range of commercial and Mil-spec parts, including parts that are DFARS and ROHS compliant.
- Brand names (Holo-Krome, Blue Devil) and generic equivalents.
- Custom-made parts per print in non-standard and exotic materials and finishes.
For more detailed information about Set Screws, to request a line card, or to send an RFQ, visit our website. And if you don’t see what you need listed, as always, ask us. “Finding the right screw for you” is our tag line after all!
Contact me at robin@mfsupply.com with your questions, comments or helpful hints!