Home > Inserts for Manufacturers > Keenserts® for Manufacturers > Keenserts® - Inch & Milspec Keylocking inserts > Inch Floating Keensert® Cross Reference - 4140 Alloy, 303 CRES & A286 Stainless

Floating Keensert® Style Keylocking Inserts
4140 Alloy, 303 CRES and A286 Stainless Steel

At MF Supply, we stock and source the most popular inch/imperial Floating Keensert® style threaded inserts in 4140 Alloy Steel and 303 CRES Stainless Steel—A286 Stainless Steel is also available for special orders*. Our inventory include Miniature (KNK) and Heavy Duty (KNK & KNKD) series in locking and non-locking options. One of our special skills is providing functional equivalents to expensive brand name fasteners including: Acme, Alcoa, Boeing, Carr-Lane, Camloc, Chrislynn, Clarendon, Delron, Fairchild, Howmet, Huck, Jergens, Kaynar, McMaster-Carr, Microdot, Rexnord, Rosan, SPS Technologies, Tridair Keensert® and Keysert® style inserts. This helps our customers save money and reduce long lead times.

Use CTRL-F to find the part number you need and cross it to an equivalent.

Then, click the "More Info" link next to your part number or use the search bar to see our e-commerce offerings and buy online or request a quote.

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!
MINIATURE FLOATING KEENSERT® STYLE INSERTS - STAINLESS STEEL
Fairchild Chrislynn Howmet Clarendon Acme I.D. O.D. LENGTH MATERIAL Self-Locking? MORE INFO
KNK0256J 87283 KNK0256J KNK0256J 87283 2-56 1/4-28 .19 303 CRES Stainless Steel No View Product
KNKL0256J 87583 KNKL0256J KNK(L)0256J 87583 2-56 1/4-28 .19 303 CRES Stainless Steel Yes View Product
KNK0440J 87284 KNK0440J KNK0440J 87284 4-40 5/16-24 .32 303 CRES Stainless Steel No View Product
KNKL0440J 87584 KNKL0440J KNK(L)0440J 87584 4-40 5/16-24 .32 303 CRES Stainless Steel Yes View Product
KNK0632J 87285 KNK0632J KNK0632J 87285 6-32 3/8-24 .36 303 CRES Stainless Steel No View Product
KNKL0632J 87585 KNKL0632J KNK(L)0632J 87585 6-32 3/8-24 .36 303 CRES Stainless Steel Yes View Product
KNK0832J 87286 KNK0832J KNK0832J 87286 8-32 3/8-24 .36 303 CRES Stainless Steel No View Product
KNKL0832J 87586 KNKL0832J KNK(L)0832J 87586 8-32 3/8-24 .36 303 CRES Stainless Steel Yes View Product
HEAVY DUTY FLOATING KEENSERT® STYLE INSERTS - ALLOY STEEL
Fairchild Chrislynn Howmet Clarendon Acme I.D. O.D. LENGTH MATERIAL Self-Locking? MORE INFO
KNKD420J 89302 KNKD420J KNKD420J 89302 1-1/8-12 1-1/2-12 1.62 4140 Alloy Steel No View Product
KNKDL420J 89502 KNKDL420J KNKD(L)420J 89502 1-1/2-12 1-7/8 -12 2 4140 Alloy Steel Yes View Product
KNKD428J 89402 KNKD428J KNKD428J 89402 1-1/2-6 1-7/8-12 2 4140 Alloy Steel No View Product
KNKDL428J 89602 KNKDL428J KNKD(L)428J 89602 1-1/4-12 1-5/8-12 1.81 4140 Alloy Steel Yes View Product
KNKD1024J 89301 KNKD1024J KNKD1024J 89301 1-1/4-7 1-5/8-12 1.81 4140 Alloy Steel No View Product
KNKDL1024J 89501 KNKDL1024J KNKD(L)1024J 89501 1-1/8-7 1-1/2-12 1.62 4140 Alloy Steel Yes View Product
KNKD1032J 89401 KNKD1032J KNKD1032J 89401 1-12 1-3/8-12 1.375 4140 Alloy Steel No View Product
KNKDL1032J 89601 KNKDL1032J KNKD(L)1032J 89601 1-14 1-3/8-12 1.375 4140 Alloy Steel Yes View Product
KNK518J 89303 KNK518J KNK518J 89303 1-8 1-3/8-12 1.375 4140 Alloy Steel No View Product
KNKL518J 89503 KNKL518J KNK(L)518J 89503 1/2-13 3/4-16 0.625 4140 Alloy Steel Yes View Product
KNK524J 89403 KNK524J KNK524J 89403 1/2-20 3/4-16 0.625 4140 Alloy Steel No View Product
KNKL524J 89603 KNKL524J KNK(L)524J 89603 1/4-20 7/16-14 0.375 4140 Alloy Steel Yes View Product
KNKD616J 89304 KNKD616J KNKD616J 89304 1/4-28 7/16-14 0.375 4140 Alloy Steel No View Product
KNKDL616J 89504 KNKDL616J KNKD(L)616J 89504 10-24 3/8-16 0.312 4140 Alloy Steel Yes View Product
KNKD624J 89404 KNKD624J KNKD624J 89404 3/4-10 1-1/8-12 1.125 4140 Alloy Steel No View Product
KNKDL624J 89604 KNKDL624J KNKD(L)624J 89604 3/4-16 1-1/8-12 1.125 4140 Alloy Steel Yes View Product
KNKD714J 89305 KNKD714J KNKD714J 89305 3/8-16 9/16-12 0.5 4140 Alloy Steel No View Product
KNKDL714J 89505 KNKDL714J KNKD(L)714J 89505 3/8-24 9/16-12 0.5 4140 Alloy Steel Yes View Product
KNKD720J 89405 KNKD720J KNKD720J 89405 5/16-18 1/2-13 0.437 4140 Alloy Steel No View Product
KNKDL720J 89605 KNKDL720J KNKD(L)720J 89605 5/16-24 1/2-13 0.437 4140 Alloy Steel Yes View Product
KNKD813J 89306 KNKD813J KNKD813J 89306 5/8-11 7/8-14 0.875 4140 Alloy Steel No View Product
KNKDL813J 89506 KNKDL813J KNKD(L)813J 89506 5/8-18 7/8-14 0.875 4140 Alloy Steel Yes View Product
KNKD820J 89406 KNKD820J KNKD820J 89406 7/16-20 5/8-11 0.625 4140 Alloy Steel No View Product
KNKDL820J 89606 KNKDL820J KNKD(L)820J 89606 7/16-14 5/8-11 0.625 4140 Alloy Steel Yes View Product
HEAVY DUTY FLOATING KEENSERT® STYLE INSERTS - A286 STAINLESS STEEL
Fairchild Chrislynn Howmet Clarendon Acme I.D. O.D. LENGTH MATERIAL Self-Locking? MORE INFO
KNKDL428JT - KNKDL428JT KNKD(L)428JT 89602 1/4-28 1/2-20 .40 A286 Stainless Steel Yes View Product