Metric Heavy Duty & Thickwall Keensert® Style Threaded Inserts - Locking and Non-Locking

What is a Metric Heavy Duty and Thickwall Keensert® Style Threaded Insert?

The Metric Keensert® style threaded insert Heavy Duty & Thick Wall (KNHM & KNHML) series is a key locking insert designed for demanding applications where enhanced strength, durability, security and reliability are essential. This heavy-duty insert is built to withstand extreme conditions and provide secure threads for fastening in environments subject to high stress, heavy loads, or severe vibration. This keylocking insert can be made from high-quality materials including Stainless Steel, A286, Nitronic 60, 4140 Alloy, and Carbon Steel, ensuring excellent performance across various demanding environments. Complying with stringent industry standards such as NA0150 and NA0151 the metric KNHM & KNHML series provides the highest quality and performance criteria for heavy-duty applications and for robust threading solutions.

Ideal for use in sectors like aerospace, automotive, defense, and heavy machinery, the Heavy Duty & Thickwall (KNHM & KNHML) metric key locking insert is available in locking and non-locking styles and in thread sizes ranging from M4 to M24. These options ensure they meet the desired goal or performance criteria for heavy-duty applications.

Metric Heavy Duty & Thickwall Keensert® Style Threaded Inserts at MF Supply

Choose from the metric Heavy Duty & Thickwall (KNHM & KNHML) series Keenserts® style key locking inserts materials available below to see available sizes. Standard materials offered include Stainless Steel, A286, Nitronic 60, 4140 Alloy and Carbon Steel. Standard sizes run from M4 through M24.

MF Supply is a leading supplier of Heavy Duty & Thickwall Metric keylocking inserts including major brands and equivalents to Acme, Alcoa, Camloc, Clarendon, Fairchild, Kaynar, Microdot and Tridair Keenserts® & Keyserts. Our products are DFAR compliant with COC and full certifications available upon request.

Metric Heavy Duty & Thickwall Keensert® Style Threaded Inserts Materials Available

Our catalog of metric Keenserts® style key locking inserts Heavy Duty & Thick Wall series include KNHM, KNHML, KNHM-F, KNHM-T, and KNHM-MX. They come in Locking and Non-Locking styles, and are available in various sizes and materials outlined below.

Metric KNHM & KNHML – Heavy Duty & Thickwall – Stainless Steel

The metric KNHM & KNHML Keensert style key locking inserts series, made from stainless steel, is uniquely engineered for environments where both strength and corrosion resistance are critical. Stainless steel offers exceptional durability and protection against rust, making these inserts ideal for heavy-duty applications exposed to moisture, chemicals, and harsh outdoor conditions. Whether used in aerospace or marine settings, the KNHM & KNHML series provides reliable threads for fastening solutions where long-term resilience is a must. They are available in metric thread sizes ranging from M4 x 0.8 to M24 x 3.

• KNHM & KNHML Metric Keensert – Stainless Steel

Metric KNHM-F – Heavy Duty & Thickwall – Carbon Steel

The metric KNHM-F Keensert style key locking inserts series stands out for its use of carbon steel, which offers an optimal balance of toughness, cost-effectiveness, and high tensile strength. Carbon steel threaded inserts are perfect for industries such as construction, automotive, and general machinery, where affordability is important without compromising on strength. The Heavy-Duty design ensures these inserts can handle high stress and heavy load applications, making them a versatile choice for robust industrial fastening. They are available in metric thread sizes ranging from M4 x 0.7 to M24 x 3.

• KNHM-F Metric Keensert – Carbon Steel

Metric KNHM-T – Heavy Duty & Thickwall – A286 Stainless Steel

The metric KNHM-T Keensert style key locking inserts series, compliant with NA0151 standards and manufactured from A286 stainless steel, is known for its outstanding performance in high-temperature and high-corrosion environments. A286’s unique composition provides both heat resistance and superior mechanical strength, making it indispensable in critical aerospace and defense applications. This material allows these inserts to withstand extreme environments where conventional materials would fail. They are available in metric thread sizes ranging from M4 x 0.7 to M24 x 3.

• KNHM-T Metric Keensert – NA0151 – A286

Metric KNHM-MX – Heavy Duty & Thickwall – 4140 Alloy Steel

The metric KNHM-MX Keensert style key locking inserts series, made from 4140 alloy steel and compliant with NA0150 standards, offers exceptional toughness and load-bearing capacity. 4140 alloy is known for its superior strength and fatigue resistance, making these keylocking inserts ideal for heavy machinery and aerospace applications where parts are subjected to extreme stress and must endure continuous use without failure. The 4140 alloy provides an unmatched level of durability and impact resistance, making it a go-to choice for critical industrial components. They are available in metric thread sizes ranging from M4 x 0.7 to M24 x 3.

• KNHM-XM Metric Keensert – NA0150 – 4140 Alloy

Metric KNHM & KNHML – Heavy Duty – Nitronic

The metric KNHM and KNHML Keensert style key locking series, forged from Nitronic 60 stainless steel, stand out for their remarkable resistance to galling, wear, and corrosion. Nitronic 60 offers a unique balance of toughness and corrosion resistance, outperforming traditional stainless steels in aggressive environments such as chemical processing plants or marine applications. This material’s ability to resist wear and tear, even under sliding conditions or when subjected to harsh chemicals, makes these metric Nitronic Keenserts style threaded inserts an exceptional choice for industries that prioritize longevity and reliability under extreme conditions. They are available in metric thread sizes ranging from M4 x 0.7 to M24 x 3.

• KNHM & KNHML Metric Keensert – Nitronic 60

Cross-reference tables' links:

• Metric Keensert Cross Reference - 4140 Alloy, A286, & Mil-Spec
• Metric Keensert Cross Reference - Stainless Steel

Resources:

• Buyer's Guide to One and Done Keensert® Ordering.pdf
• Keenserts® Data Sheet.pdf
• Keensert® Functional Equivalent Case Study
• Case Study: Smart Manufacturers use Brand Equivalents to Save Time and Money
• Keenserts® vs Helical Inserts: What’s The Difference?
• Keensert® Style Key Locking Inserts Frequently Asked Questions

Why Buy Metric Heavy Duty & Thickwall Keenserts® Style Threaded Inserts from MF Supply?

With over 50 years of experience as a supply chain partner to manufacturers, and deep and broad expertise in Metric fasteners and inserts, MF Supply can help with all your fastening and hardware needs.

We stock a huge inventory of Heavy Duty & Thickwall metric key-locking inserts. Standard materials offered include Stainless Steel, A286, Nitronic 60, 4140 Alloy and Carbon Steel. Standard sizes run from M2 through M24.

Additional Metric product lines include Miniature & Thinwall, Solid, Extra Heavy Duty, Installation tools and kits. Special materials and nonstandard sizes may be available for special order with a lead time

Can't find what you're looking for? Email us at [email protected] for a custom quote. "We have the right screw for you" is our motto after all!