A286 Stainless Steel Keenserts®: Stronger Threads for High-Temperature & Corrosive Applications
Posted: August 19, 2025 Filed under: A286 Keenserts, Fasteners, keensert, key-locking inserts, Threaded Bushing, Threaded Fasteners, Threaded Inserts | Tags: A286, A286 Keenserts, A286 Keylocking Inserts, A286 Stainless Steel, A286 Stainless Steel Keenserts, Inserts, inserts for manufacturers, Keenserts, Key Locking Inserts, manufacturing, Metric A286 Keenserts, Mil-Spec A286 Keenserts, threaded bushing, threaded fastener Leave a comment
If your next thread reinforcement or repair project involves corrosive, high-load, or high-temperature conditions, A286 stainless steel Keenserts® (key-locking inserts) may be your best choice.
In this guide, you’ll learn:
- What A286 Superalloy is
- Key benefits of using A286 Keenserts®
- How to identify A286 in part numbers
- Available series and styles
- Industries and applications that rely on A286 Keenserts®
What Is A286?
A286 is an iron–nickel–chromium stainless steel superalloy known for:
- High strength (maintains properties at up to 1300°F / 700°C)
- Excellent corrosion & oxidation resistance
- Performance in both extreme heat and low-temperature environments
It is widely used in gas turbines, aerospace components, and assemblies that face frequent exposure to extreme conditions. This alloy can also be age-hardened to improve ductility in notched sections.
Why Choose A286 Keenserts®?
Keenserts® are solid, one-piece threaded inserts designed for permanent, high-strength threads—especially in softer materials or under intense heat and torque.
Here’s why A286 stainless steel Keenserts® stand out:
1 – High-Temperature Strength
A286 retains its strength where others fail—ideal for exhaust zones, turbines, and engine bays. Its oxidation resistance and heat-treat response ensure long-lasting performance.
2 – Mechanical Locking Keys
Drive keys lock the insert into the parent material, resisting torque-out and rotation even in vibration-heavy assemblies. This ensures reusable, secure threads during multiple maintenance cycles.
3 – Aerospace-Grade Quality
With minimum tensile strength of 140 ksi, finishes meeting AMS 2700 / ASTM B700, and 302 CRES keys, these inserts meet stringent military and aerospace specs.
4 – Simple Installation
Uses standard drills and taps—no STI tap required. Just tap the hole, insert, and drive in the keys. For parent materials harder than RC30, a broaching tool is recommended to cut key slots.
Note: A286 can be costlier and harder to machine, with potential long lead times.
How to Identify A286 in Part Numbers
Look for these designators:
- Mil-Spec: CA (e.g., MS51831CA204, NAS1395CA6)
- Commercial: JT (e.g., KNH624JT)
- Metric Commercial: T (e.g. KNCM4x0.7T)
- Metric Mil-Spec: NA Series NA0147, NA0149, & NA0151
Example:
- MS51831CA204, NAS1395CA6, and KNH624JT all describe the same insert:
3/8-24 ID x 9/16-12 OD Heavy-Duty A286 CRES Key-Locking Insert.
A286 Keenserts® Series & Styles
Beyond their core benefits, A286 Keenserts® key-locking inserts come in a range of specialized series designed for specific applications:
- Miniature (KNC) & (NA0147): Ultra-lightweight for electronics & avionics. Inch/Mil-Spec (2-56 to 1/4-20), Metric (M2–M4).
- Thin Wall (KN/KNM) & (NA0149): For tight spaces; precision engineering. Inch/Mil-Spec (10-24 to 1/2-13), Metric (M5–M12).
- Heavy-Duty (KNH/KNHM) & (NA0151): For high-stress uses—automotive, heavy machinery. Inch/Mil-Spec (1/4-20 to 7/8-14), Metric (M4–M24).
- Extra Heavy-Duty (KNHXH): For extreme load and torque; industrial & military. Inch/Mil-Spec (1/4-20 to 7/8-14). No Metric Option.
Other Series and styles, including Floating (KNK) Key-locking inserts may be available for special order.
In general, A286 Keenserts® will be manufactured to meet aerospace and military standards: MS51830CA, MS51831CA, MS51832CA, NAS1394CA, NAS1395CA, NA0147, NA0149, NA0151.
Industries That Rely on A286 Keenserts®
- Aerospace: Structural components exposed to heat, load, and vibration.
- Oil & Gas: Equipment facing high heat and corrosion.
- Automotive & Defense: Frequent assembly/disassembly in performance and military systems.
- Power Generation: Turbines and engine components under oxidative stress.
MF Supply, Your Trusted Source for A286 Keensert® Style Key-Locking Inserts
MF Supply is a WBE/WOSB-certified supplier of A286 Keensert® style key-locking inserts, serving manufacturers, engineers, government, and industry.
We balance cost, quality, availability, and certification needs (DFARS, COC, etc.), and most popular sizes ship within 24 hours.
Browse Our Selection & Shop A286 Keenserts® Now!
Please plan ahead as less popular sizes may involve minimum order and long lead times.
Do you still have questions or would like to speak with a representative? Reach out to us or send us an RFQ below, and our MF Supply team of sourcing experts will help you find what you’re looking for. “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
- Creatively Solve Problems – We are sourcing experts and specialize in hard to find parts. We offer custom manufacturing and reworking solutions at competitive pricing, reducing long deliveries.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- 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.
- 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, with an expertise in inserts, military fasteners and stainless steel hardware. 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.
Why Use Nitronic Keenserts vs. Nitronic Helicoils?
Posted: July 29, 2025 Filed under: Brand equivalents, Fasteners, keensert, key-locking inserts, Nitronic 60 Keenserts, Threaded Bushing, Threaded Fasteners, Threaded Inserts | Tags: Inserts, inserts for manufacturers, Keenserts, Key-Locking Inserts, manufacturing, Mil-Spec Nitronic Keenserts, Nitroinc, Nitronic 60, Nitronic 60 Keenserts, Nitronic Keenserts, Nitronic Keylocking Inserts, threaded bushing, threaded fastener Leave a comment
If you need Nitronic material for your thread repair or thread reinforcement project, you might be deciding between helical and/or key-locking inserts. Here are some considerations to help you evaluate which product will best solve for your needs.
But first, let’s take a closer look at Nitronic 60…
What Makes Nitronic Special?
Nitronic 60, the most commonly used Nitronic material used to manufacture inserts, is a high-performance stainless steel alloy enriched with nitrogen, renowned for its exceptional wear, galling, and corrosion resistance. It provides exceptional resistance to crevice corrosion, general corrosion and high temperature oxidation, This makes it ideal for applications that require durable and reliable thread repair or reinforcement in marine environments, chemical processing equipment, and assemblies that require frequent disassembly.
Nitronic Keenserts® vs. Helicoils
Helicoils (helical inserts) are used for thread repair and reinforcement. They are considered the simplest way to repair stripped or damaged threads. Helical wire inserts are the way to go when reducing costs and minimizing space are priorities. Helicals are useful for creating permanent strong threads in softer materials, in lower heat and lower torque environments, or to convert threads between inch and metric sizes.
So what’s the the catch?
Helicals have certain limitations that Keenserts® (key-locking inserts) overcome. Keenserts are the best bet in heavy wear, high vibration and high heat situations where saving space is not a concern and the hole depth is limited.
If your project calls for Nitronic inserts, below are four reasons why you should consider choosing Keensert® style key-locking inserts vs. Nitronic helical inserts:
- Superior Strength and Stability: Nitronic key-locking inserts have locking keys that mechanically lock the insert into place, offering superior resistance to vibration and torque-out compared to helical inserts, which rely solely on friction.
- Enhanced Durability: The durable design of key-locking inserts provides greater resistance against thread stripping and wear, making them suitable for repeated assembly and disassembly without compromising the integrity of the threads.
- Corrosion and Galling Resistance: Both helical inserts and key-locking inserts made from Nitronic 60 offer excellent corrosion resistance. However, key-locking inserts provide additional structural integrity, especially crucial in harsh environments where component failure is not an option.
- Easier Installation and Maintenance: Nitronic key-locking inserts require no special taps or tools for installation beyond standard equipment—a pneumatic power tool is recommended if installing key-locking inserts in the thousands—reducing downtime during maintenance or initial assembly. Their solid, one-piece design simplifies handling and reduces the likelihood of installation errors.
Unsure which Nitronic 60 insert is ideal for your next thread-repair or reinforcement project? Send us your questions, we’re here to help!
Shop Nitronic Keensert® Style Key-Locking Inserts at MF Supply!
Nitronic Keenserts® Series and Standards Available
In addition to the previous reasons, Nitronic Keenserts® style key-locking inserts are also available in a variety of specialized styles/series and standards that are tailored for specific applications:
- Miniature (KNC): Ideal for lightweight applications where space and weight constraints are critical, such as electronics or avionics. Available inch/imperial and Mil-Spec sizes run from 2-52 through 1/4-20 inches.
- Thin Wall (KN & KNM): Excellent for limited-space installations, providing strength without adding significant bulk, commonly used in precision engineering. Available inch/imperial and Mil-Spec sizes run from 10-24 through 1/2-20 inches, and metric sizes run from M5 through M12.
- Heavy-Duty (KNH & KNHM): Designed for high-stress applications where structural integrity and robust fastening capabilities are essential, such as automotive and heavy machinery. Available inch/imperial and Mil-Spec sizes run from 1-8 through 7/8-14 inches, and metric sizes run from M4 through M24.
- Extra Heavy-Duty (KNHXH): Engineered for extreme load-bearing and high-torque scenarios, perfect for heavy industrial and military applications demanding maximum strength and durability. Available inch/imperial and Mil-Spec sizes run from 1-8 through 7/8-14 inches.
Nitronic Keenserts® style key-locking inserts can also follow/meet stringent aerospace and military standards, including:
These styles/series and standards provide adequate solutions ranging from lightweight applications in aerospace to heavy-duty industrial settings.
Industries That Benefit From Nitronic Keenserts®
Nitronic Keensert® style key-locking inserts are ideal for industries that demand trusted and dependable reliability, such as:
- Aerospace: Nitronic key-locking inserts are essential for structural components requiring exceptional strength and resistance to vibration.
- Marine: Nitronic key-locking inserts are able to withstand harsh saltwater environments without corrosion.
- Automotive and Defense: Nitronic key-locking inserts are ideal for parts undergoing frequent assembly and disassembly.
- Chemical Processing: Nitronic key-locking inserts are extremely resilient under highly corrosive conditions.
MF Supply, Your Trusted Source for Nitronic Keensert® Style Key-Locking Inserts
MF Supply is a WBE/WOSB certified business, and a leading supplier of Nitronic Keensert® style key-locking inserts for manufacturers, engineers, government and industry. At MF Supply, we understand the industry’s need to balance cost, quality, availability, and paperwork/certification requirements—DFARS, COC, and more. Most of our popular Nitronic key-locking inserts sizes are in stock and ready to ship within 24 hours.
Buy Nitronic Keensert® Style Key-Locking Inserts From MF Supply!
Do you still have questions or would like to speak with a representative? Reach out to us or send us an RFQ below, and our MF Supply team of sourcing experts will help you find what you’re looking for. “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
- Creatively Solve Problems – We are sourcing experts and specialize in hard to find parts. We offer custom manufacturing and reworking solutions at competitive pricing, reducing long deliveries.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- 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.
- 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, with an expertise in inserts, military fasteners and stainless steel hardware. 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.
Floating Keensert® Style Key-Locking Inserts — Ideal for Off-Center Holes
Posted: July 2, 2025 Filed under: Brand equivalents, Fasteners, Floating Keenserts, floating key-locking inserts, keensert, key-locking inserts, Threaded Bushing, Threaded Fasteners | Tags: Alloy Steel Floating Keenserts, Floating Inserts, Floating Keenserts, Floating Keenserts Distributor, Floating Keenserts Supplier, Floating Key Locking Inserts, Floating Keylocking Inserts, inch keenserts, Inserts, inserts for manufacturers, Keenserts, manufacturing, Stainless Steel Floating Keenserts, threaded bushing, threaded fastener Leave a comment
MF Supply is an expert and a leading supplier of Floating Key-Locking Inserts—commonly known in the industry as Floating Keenserts®, Floating Key Locking Threaded Inserts, Floating Key Locking Inserts, and Floating Keylocking Inserts—for manufacturers, engineers, government and industry.
Shop Floating Keensert® Style Key-Locking Inserts at MF Supply!
In this blog, we will showcase a comprehensive overview of what Floating Keenserts® are, their benefits, where they are used, available styles, sizes, and materials—and when they’re the go-to solution for aerospace, defense, or demanding industrial manufacturing applications.
What Is a Floating Keensert®?
A Floating Keensert® is a specialized fastener engineered to correct and accommodate thread misalignments. The Keensert®, supplied as a one-piece unit, is ideal for use where mating panel holes may be off-center. Unlike the conventional rigid Keensert®, a Floating Keensert® integrates an internal floating nut element that “floats” within the insert’s outer housing. This unique floating feature allows internal threads to self-align during installation, reducing the risk of binding or misfit issues, which can occur with other Keenserts® or conventional threaded inserts.
This insert automatically compensates for misalignment:
- .015” for miniature size 2-56
- Up to .040” for heavy-duty size #10 and larger
In What Series, Sizes and Materials are Floating Keenserts® Available?
Floating Keenserts® are available in Miniature and Heavy Duty series—both in locking and non-locking options. Standard sizes and materials are noted below. Special materials, such as A286 Stainless Steel, may be available as a special order and may involve a lead time or a minimum.
Miniature Floating Keenserts® Series (KNK & KNKL)
- Sizes: Available in inch/imperial sizes ranging from 2-56 through 8-32 inches.
- Material: Crafted from 303 corrosion resistant stainless steel (CRES).
- Finish: Passivated.
- Keys: These inserts are furnished with two locking keys only.
- Tolerances: ±.010 inch unless specified otherwise.
Heavy Duty Floating Keenserts® Series (KNK, KNKD & KNKDL):
- Sizes: Available in inch/imperial sizes ranging from 10-24 through 1/2-20 inches.
- Material: Made from durable 4140 Alloy Steel.
- Finish: Cadmium Plating.
- Keys: These inserts are furnished with four locking keys for internal thread size of 5/16 and larger, and two locking keys for all smaller sizes.
- Tolerances: ±.010 inch unless specified otherwise.
Locking and Non-Locking Features
- Both, Miniature and Heavy Duty Floating Keenserts® feature self-locking options/variants, which are always denoted by an “L” in the series or product codes (e.g., KNKL0256J, KNKL, and KNKDL). These self-locking inserts are also treated with dry-film lubricant, which usually appear darker in finish than non-locking models, simplifying installation and providing amazing thread-locking capabilities.
Check out our Floating Keensert® Style Key-Locking Inserts cross-reference chart to find your ideal insert!
What Are the Benefits and Possible Applications for Floating Keenserts®?
Floating Keenserts® provide significant benefits by automatically compensating for thread misalignment, facilitating easier and more accurate fastener installations, and enhancing reliability in scenarios where standard rigid inserts could lead to thread binding, misalignment, or failure. Typical applications include:
- Curved surfaces where precise alignment is challenging
- Flat head screw/bolt installations
- Assemblies involving multiple hole alignments
- Environments subject to thermal expansion and contraction
Their one-piece assembly design ensures easy installation and optimal thread alignment, minimizing downtime and improving overall project reliability.
MF Supply Is Your Source for Floating Keensert® Style Key-Locking Inserts!
MF Supply is a WBE/WOSB certified business, and a leading supplier of Floating Keensert® Style Key-Locking Inserts for manufacturers, engineers, government and industry. At MF Supply, we understand the dynamic needs of the industry, including the balance of price, quality, availability and certification paperwork, such as DFAR and COC. Most popular sizes are in stock and ready to ship within 24 hours. Ready to see how we can help you?
Do you still have questions or would like to speak with a representative? Reach out to us or send us an RFQ below, and our MF Supply team of sourcing experts will help you find what you’re looking for. “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
- Creatively Solve Problems – We are sourcing experts and specialize in hard to find parts. We offer custom manufacturing and reworking solutions at competitive pricing, reducing long deliveries.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- 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.
- 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, with an expertise in inserts, military fasteners and stainless steel hardware. 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.
Shop E-Z LOK Threaded Inserts, Installation Tools & Thread Repair Kits at MF Supply
Posted: September 12, 2024 Filed under: E-Z LOK, Fasteners, helical wire inserts, Installation Tools, Thread Repair Kits, Threaded Bushing, Threaded Fasteners, Threaded Inserts | Tags: E-Z LOK, E-Z LOK Distributor, E-Z LOK Installation Tools, E-Z LOK Supplier, E-Z LOK Thread Repair Kits, E-Z LOK Threaded Inserts, EZ LOK Leave a comment
Are you a precision engineer or industrial manufacturer looking for reliable threaded inserts and installation solutions? Look no further! MF Supply is an authorized E-Z LOK distributor, and we are proud to offer the complete range of over 1,300 unique E-Z LOK products, providing high-quality threaded inserts, installation tools, and thread repair kits to meet your most demanding project requirements. Whether you are in the automotive industry, aerospace, or heavy manufacturing, E-Z LOK solutions are designed to improve efficiency and ensure the durability of your project.
Buy E-Z LOK Threaded Inserts, Installation Tools, and Kits at MF Supply!
Why Choose E-Z LOK Products?
As a precision engineer or industrial manufacturer, you know that quality, durability, and ease of installation are critical factors for maintaining optimal performance.
E-Z LOK is a trusted brand name in threaded insert solutions across a wide range of industries. Their products are engineered to meet rigorous quality standards such as TSCA PBT, RoHS, REACH, DFARS, and ITAR, ensuring excellent performance in the most demanding applications. If you need to repair stripped threads or create reliable, wear-resistant threads in materials like wood, plastic, or metals, E-Z LOK threaded inserts, installation tools & thread repair kits provide all the solutions you need! E-Z LOK products provide:
- Thread repair and reinforcement in metals, woods, and plastics.
- Durable holding power in materials that are too soft or thin to hold threads on their own, or in materials with unthreaded, damaged or stripped holes.
- Versatility in their range of threaded insert designs, including thin wall, standard wall, extra heavy wall, screw-locking, and automotive options.
- Corrosion-resistant materials, such as Brass and 303 & 316 Series Stainless Steel for long-lasting performance in harsh environments.
- Easy installation with or without specialized tools and kits, reducing downtime and extra costs.
The Complete Range of E-Z LOK Products at Your Finger Tips
We offer the complete selection of E-Z LOK products directly on our website, making it easier for you to find exactly what you need for you project at your fingertips. Below is an overview of the E-Z LOK product categories available.
1 – E-Z LOK Threaded Inserts:
Threaded inserts are crucial components used to add strong, durable threads in softer materials or to repair damaged threads in existing assemblies. If you’re working with metal, wood, or plastic, E-Z LOK threaded inserts offer the perfect solution for reinforcing threads; repairing stripped or damaged threads without re-machining the entire part; and ensuring long-lasting, wear-resistant connections in high-stress applications. These threaded inserts are available in thread sizes ranging from 0-80 through 1-1/2-12 for inch/imperial sizes, and M2 x 0.4 through M39 x 4 for metric thread sizes. Materials offered include Aluminum, Brass, Carbon Steel, 303 & 316 Series Stainless Steel, and Zinc.
- E-Z Coil™ Threaded Inserts: Designed for repairing damaged threads or creating new threads in softer materials like aluminum and magnesium. Made from high-quality Carbon Steel, Stainless Steel, and Zinc, they provide strong, permanent threads.
- E-Z Fin™ Threaded Inserts: Ideal for applications in plastics and soft metals, ensuring secure fastening and vibration resistance. Available in Brass and Stainless Steel.
- E-Z Hex™ Threaded Inserts: Perfect for applications requiring frequent disassembly and reassembly, these inserts offer a secure fit and easy handling due to their hexagonal shape, which prevents rotation.
- E-Z Knife™ Threaded Inserts: Suitable for hard woods and thermoset plastics, providing high pull-out strength and vibration resistance with a knurled exterior for superior grip.
- E-Z Press™ Threaded Inserts: Designed for plastics and soft metals, these press-fit inserts offer high pull-out resistance without the need for thread tapping.
- E-Z LOK™ Threaded Inserts: Versatile inserts for various materials, offering strong threads in Brass, Carbon Steel, Stainless Steel, and Zinc.
- E-Z Sonic™ Threaded Inserts: Used in applications requiring ultrasonic or heat installation in thermoplastics, ensuring a secure fit.
2 – E-Z LOK Threaded Inserts Installation Tools
One of the major benefits of E-Z LOK threaded inserts is that they are designed for easy installation. Most inserts can be installed without the need for specialized tools, but for high-precision or high-volume projects, having the right tools can be the difference between meeting or failing a deadline. Hence, the comprehensive list of E-Z LOK installation tools, which are engineered to meet ASME and ANSI industry standards, ensure that you get the job done with precision and quickly. Installation tools available include:
- E-Z Coil™ Installation Tool: Ensures proper insertion and secure fit of E-Z Coil™ Threaded Inserts, which are available in various sizes.
- E-Z LOK™ Drills (Brad Point HSS, Reduced Shank, HSS): Used for precise drilling in wood, plastic, and metal, ensuring clean and accurate holes for insert installation.
- E-Z LOK™ Threaded Insert Drive Tools: Designed for driving inserts into pre-drilled holes, ensuring proper alignment and secure fit.
- E-Z Coil™ Extract Tool & Tang Break Off Tool: Facilitates easy removal and clean installation of E-Z Coil™ Threaded Inserts.
- E-Z LOK™ Taps (HSS Standard Bottoming, Standard Bottoming, HSS STI Bottoming): Used for creating accurate and durable threads in various materials, specifically for E-Z Coil™ inserts.
3 – E-Z LOK Threaded Inserts Installation and Thread Repair Kits
E-Z LOK thread repair kits offer a fast, cost-effective solution. These kits include all the necessary components for quick, reliable thread repairs in metals, plastics, and wood, ensuring minimal downtime, maximum efficiency, and long-lasting durability in high-stress environments. With E-Z LOK’s reputation for quality and ease of use, these kits help maintain equipment performance and extend service life. Available kits include:
- E-Z LOK™ Coil Thread Repair Kit: Comprehensive kit for repairing damaged threads in metals, including inserts, drills, taps, and installation tools.
- E-Z Hex™, E-Z Knife™ Threaded Insert Installation Kits: Ensure secure installation with all necessary tools and inserts.
- E-Z LOK™ Thread Repair Kit: Versatile kit for general-purpose thread repair, offering a range of tools and inserts.
- E-Z LOK™ Threaded Insert Assortment Kit: Provides a variety of inserts and tools for multiple applications.
- E-Z LOK™ Solid Wall Thread Repair Kit: Ensures strong and durable threads in high-stress applications.
- E-Z Sonic™ Threaded Insert Assortment Kit: Comprehensive kit for ultrasonic and heat installation in thermoplastics, providing secure and reliable threads.
Why Buy E-Z LOK Thread Inserts, Tools & Kits from MF Supply?
MF Supply is a leading supplier of threaded inserts including E-Z LOK threaded inserts, Keensert® style key-locking inserts and helical wire inserts. We stock and source a huge inventory, including major OEM brands and equivalents to HeliCoil®, Recoil®, KATO®, PowerCoil, Bollhoff, Perma-Coil, V-Coil, Time-Sert and more — in inch/imperial, metric and Mil-Spec sizes and materials. Our Mil-Spec products are DFAR compliant with COC and full certifications available upon request.
Shop the complete catalog of E-Z LOK products directly on our website!
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].
Carbon Steel Key-Locking Inserts (AKA Keenserts®) at www.mfsupply.com
Posted: January 26, 2024 Filed under: Brand equivalents, Carbon Steel Keenserts, Fasteners, Inch and Mil-Spec Keensert, keensert, key-locking inserts, Metric Keensert, Threaded Bushing, Threaded Fasteners | Tags: Carbon Steel, Carbon Steel Keenserts, Carbon Steel Key-Locking Insesrts, Fasteners, inch keenserts, Inserts, inserts for manufacturers, Keenserts, manufacturing, metric keenserts, mil-spec keenserts, RKK, RKK Keenserts, threaded bushing, threaded fastener Leave a comment
MF Supply is an expert and industry leader when it comes to key-locking inserts, commonly known by the popular brand name Keensert®. We stock and source key-locking inserts in a wide variety of materials, platings and sizes, including Inch, Metric, Commercial and Mil-Spec options.
In today’s blog, we will showcase a comprehensive overview of Carbon Steel Key-Locking Inserts, covering their benefits, uses, styles, standards, sizes, and comparison with other key-locking inserts made from other materials — so you are all set before jumping off to procure them for your next project.
What are Carbon Steel Key-Locking Inserts?
Carbon Steel Key-Locking Inserts, often referred to in industry vernacular as Carbon Steel Keenserts®, are precision-engineered threaded inserts predominantly fabricated from high-grade carbon steel.
Featuring both internal and external threads, these inserts are adept at providing wear-resistant thread interfaces in substrates that are inherently susceptible to thread degradation or are insufficiently robust for the intended mechanical loads. The external threading of these inserts exhibits a larger diameter and pitch compared to the internal threads, ensuring a secure engagement with the parent material.
These components are specifically designed for thread reinforcement and repair applications across a broad spectrum of parent materials. Their key-locking mechanism involves the deployment of keys integrated into the insert body. Upon installation into a pre-tapped hole, these keys are driven outward into the parent material, thereby affording a secure mechanical lock that resists rotational and axial forces. Hence, this feature is pivotal in applications where vibrational loads or cyclic stresses are prevalent.
The versatility of Carbon Steel Key-Locking Inserts makes them beneficial for any sector requiring durable, reliable threaded connections, especially where materials are subject to wear, high stress, or require thread repair and reinforcement.
What Styles, Standards & Sizes Are Available?
Carbon Steel Keenserts®, or Key-Locking Inserts, have different styles in order to cater to a wide range of application requirements and material conditions. The distinct styles are designed to address specific challenges such as load capacity, space constraints, installation requirements, and the physical properties of the base material. Below is a list of all the styles available for these Key-Locking Inserts:
- Thin Wall | RKKA | KNM: These are used when minimal space is available or in applications where less material needs to be removed. They offer a good balance between strength and size. Available off the shelf in Internal Thread 10-24 through 1/2-20 and Metric M5-M12. Often referred to by their original Fairchild part numbers: RKKA
- Heavy Duty | RKK | KNHM: Designed for higher strength and durability, these are suitable for applications subject to high stress or where a stronger thread is required. Available off the shelf in Internal Thread 8-32 through 1-1/2, and Metric M4-M24. Often referred to by their original Fairchild part numbers: RKK
- Extra Heavy Duty | KNHXH: These inserts are used in extremely demanding applications where very high pull-out and torque resistance is needed. Available off the shelf in Internal Thread 6-32 through 1-12. No standard Metric option available. Often referred to by their original Fairchild part numbers: KNHXH
- Solid | KNJ: Unlike other types have both internal and external thread, solid inserts have only external thread. Once installed, they can be drilled and tapped as required. These solid inserts can be used to relocate misplaced holes, customize the internal threads, or plug existing holes. They are extremely durable but might require more installation space. Available off the shelf in External Thread 3/8-16 through 1-1/4 and Metric M8-M32. Often referred to by their original Fairchild part numbers: KNJ.
Commonly available in diameters from 6-32 through 1-1/2, Carbon Steel Key-Locking Inserts can be used in a wide range of applications from small electronics to heavy machinery. The thread pitch varies accordingly, with finer pitches for delicate applications and coarser pitches for heavy-duty applications.
Carbon Steel Key-locking inserts are generally offered as commercial parts, and don’t have a Mil-Spec equivalent. They come standard with a phosphate finish.
*Note – Carbon Steel Key-locking Inserts do not come with a Self-Locking option, which is a standard option with Stainless Steel Keenserts®.
The Carbon Steel Difference!
How do Carbon Steel Key-Locking Inserts stack up against other materials? Here’s the breakdown:
- Stainless Steel: Stainless Steel Keenserts® are known for their corrosion resistance, especially in marine and chemical environments. However, Carbon Steel Key-Locking Inserts are generally stronger and more wear-resistant, which is beneficial in applications where the primary concern is strength rather than exposure to corrosive elements.
- 4140 Alloy Steel: This is a high-carbon alloy steel that provides excellent wear resistance and strength. While 440 Alloy Steel Keenserts® offer superior hardness, Carbon Steel Key-Locking Inserts typically excel in toughness and are more ductile, making them less likely to crack under high stress.
- A286: A286 is an iron-nickel-chromium stainless steel alloy known for its high strength and corrosion resistance at elevated temperatures. Carbon Steel Key-Locking Inserts may not match the high-temperature performance but are significantly more cost-effective for applications where extreme temperatures are not a concern.
- Nitronic 60: This material provides excellent galling and wear resistance. While it is superior in environments where these factors are critical, Carbon Steel Key-Locking Inserts offer a better balance of strength and cost-efficiency for general-purpose use.
- Inconel: Known for its ability to withstand extreme temperatures and corrosion, Inconel is often used in high-temperature applications. Carbon Steel Key-Locking Inserts, on the other hand, are more widely used in applications where high temperature and corrosion are not as critical but where high strength and lower cost are important.
Hence, Carbon Steel Key-Locking Inserts offer an excellent balance of performance and value, making them a preferred choice for applications where the benefits of higher-cost, specialized materials are not required. They stand out for their strength, toughness, and cost-effectiveness, providing a reliable and affordable solution for thread reinforcement and repair.
Carbon Steel Key-Locking Inserts at MF Supply!
MF Supply is a WBE/WOSB certified business, and a leading supplier of Carbon Steel Key-locking Inserts (AKA Keenserts®) for manufacturers, government and industry. At MF Supply, we understand the dynamic needs of the industry, including the balance of price, quality, availability and certification paperwork. Ready to see how we can help you make a difference?
Visit our website or browse through the links provided below to discover the perfect Carbon Steel Key-Locking Inserts for your next project!
Inch Carbon Steel Key-locking Inserts:
- Miniature & Thin Wall Styles Series
- Heavy Duty & Thick Wall Style Series
- Extra Heavy Duty Style Series
- Solid Style Series
Metric Carbon Steel Key-locking Inserts:
Note – Installation requires a drill bit, a standard tap, an installation tool, and a hammer. Feel free to ask us about Keensert® Kits available for many Carbon Steel sizes. Kits include a minimum of 2 inserts, a drill bit, a tap and an installation tool.
Do you still have questions or would like to speak with a representative? Reach out to us, and our MF Supply team of sourcing experts will help you find what you’re looking for. “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
- Creatively Solve Problems – We are sourcing experts and specialize in hard to find parts. We offer custom manufacturing and reworking solutions at competitive pricing, reducing long deliveries.
- Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
- 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.
- 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, with an expertise in inserts, military fasteners and stainless steel hardware. 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.
Inch & Metric Nitronic Keenserts® Now Available at www.mfsupply.com!
Posted: November 15, 2023 Filed under: Brand equivalents, Fasteners, Inch and Mil-Spec Keensert, keensert, key-locking inserts, Metric Keensert, Nitronic 60 Keenserts, Threaded Bushing, Threaded Fasteners | Tags: Fasteners, inch keenserts, Inserts, inserts for manufacturers, Keenserts, manufacturing, Mechanical Fasteners, metric keenserts, Mil-spec fasteners, mil-spec keenserts, Nitronic 60, Nitronic 60 Keensesrts, Nitronic Keenserts, threaded bushing, threaded fastener Leave a comment
In the bustling world of manufacturing and engineering, where every component counts and the margin for error is slim, MF Supply recognizes the intricacy involved in sourcing materials that offer both superior performance and extended durability. This is where our friends, the Key-locking Inserts (AKA Keenserts®) become the stars of the show. Today, we’re turning the spotlight on an insert that’s been making waves in the industry: the Nitronic 60 Key-locking Insert!
If you’re on the quest for Key-locking Inserts that promise to elevate the integrity of your projects, you’re in the right place. Nitronic 60 key-locking Inserts are not just components; they’re your peace of mind molded into high-performance alloy.
Why Nitronic 60 Key-locking Inserts? The Vanguard of Resilience
Picture a material that laughs in the face of wear, shrugs off corrosion, and doesn’t flinch under high torque. That’s Nitronic 60 for you — an alloy steel that’s as tough as they come. Crafted from this robust alloy, Nitronic Key-locking Inserts boast unparalleled wear and galling resistance. For those of you constantly battling the wear and tear that comes with mechanical demands, these threaded inserts are your knights in shining armor. Think of them as the silent guardians against the everyday wear-and-tear that can compromise your work.
The Rust Doesn’t Sleep, But You Can
Corrosion is the arch-nemesis of metal, lurking and waiting to undermine your structures. But with Nitronic 60’s exceptional corrosion resistance, rest easy knowing that your components are as steadfast as your ambition. Whether it’s the salty bath of marine environments or the demanding conditions of chemical processing, they’ve got you covered.
Strength That Speaks Volumes
Nitronic 60 Key-locking Inserts don’t just resist wear; they embrace strength. High stress, high torque — bring it on! The formidable might of Nitronic 60 makes these Key-locking Inserts the backbone for applications that can’t afford to falter, from the aerospace zeniths to the depths of automotive innovation.
The Nitronic 60 Difference
We hear you asking, “But how do they stack up against other materials?” Here’s the deal:
Nitronic 60, as a material, is a high-performance stainless steel alloy known for its excellent strength and resistance to wear and galling. This versatile alloy provides exceptional resistance to high temperature oxidation, crevice corrosion and general corrosion, making it well suited to marine and chemical applications. Key-locking inserts made from Nitronic 60 are used in various applications where high strength and corrosion resistance are a must.
- Carbon Steel Inserts: Compared to standard steel, Nitronic 60 offers superior resistance to corrosion and galling.
- Stainless Steel Inserts: Among stainless steels, Nitronic 60 typically outperforms varieties such as 304 or 316 in wear resistance.
- Inconel Inserts: Inconel excels in high-temperature applications but comes at a higher cost and greater machining difficulty than Nitronic 60.
- 4140 Alloy Inserts: 4140 Alloy provides greater tensile strength and enhanced performance at high temperatures, although it falls short in corrosion resistance and often necessitates protective coatings. Nitronic 60 is better suited for applications involving friction at moderate temperatures.
- A286 Inserts: A286 excels in high-temperature applications, maintaining higher strength at elevated temperatures, though it’s tougher to machine and more expensive than Nitronic 60.
A Spectrum of Possibilities
We’re not about “one-size-fits-all” because we know your engineering needs are as unique as your blueprints. That’s why we offer Key-locking Inserts in inch, mil-spec and metric sizes that are tailored to the scope and scale of your vision — common internal diameters include #2-56 through 1 1/2-6 for inch & mil-spec sizes, and M2 through M24 for metric sizes. And with varying lengths at your disposal, the only limit is the application and your imagination. Materials
Compliance with stringent industry standards is not just a promise; it’s our practice. Our inserts meet or exceed critical aerospace and military specifications, ensuring that they deliver in applications where there is no room for error. Standards available include MS51830, MS51831, MS51832, NAS1394 and NAS1395. Series available include Miniature KNC, Thin Wall KN & KNM, heavy-duty KNH & KNHM, and extra heavy-duty series KNHXH.
Whether you’re in aerospace, automotive, defense, or any field that demands unyielding materials, these inserts are ready to serve. They’re the go-to for applications that require repeated assembly and disassembly, ensuring longevity and reliability every step of the way.
Discover More, Achieve More
MF Supply is a WBE/WOSB certified business, and a trusted supplier of Nitronic 60 Key-locking Inserts (AKA Keenserts®) for manufacturers, government and industry. Eager to delve deeper into the world of Nitronic 60 Key-locking Inserts? Visit our website, where innovation is just a click away, and join the ranks of manufacturers and engineers who don’t just build, but inspire.
With Nitronic 60 Key-locking Inserts, it’s not just about holding things together; it’s about unlocking possibilities. Discover the sizes, standards, and the success that our inserts can enable.
Inch & Mil-Spec Nitronic 60 Key-locking Inserts
- Miniature & Thin Wall – KN, KNL, KNC & KNCL Series
- Heavy Duty – KNH & KNHL Series
- Extra Heavy Duty – KNHXH & KNHXHL Series
Metric Nitronic 60 Key-locking Inserts
Do you still have questions or would like to speak with a representative? Reach out to us, and our MF Supply team of sourcing experts will help you find what you’re looking for. “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 and specialize in hard to find parts. We offer custom manufacturing and reworking solutions at competitive pricing, 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.