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M4 Keps

Keps® Nuts or K-Lock® Nuts are nuts pre-assembled with a free-spinning captive washer, usually an external tooth lock washer. As the nut is tightened, the washer bites into the mating surface, forming the locking feature of the nut.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70m4-.7 k-lock nut w/ext star s/s765
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AbabaCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70m4-.7 k-lock nut w/ext star s/s300
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AbabaCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.7 k-lock nut w/ext star stl znc6768
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AbabaCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.7 k-lock nut w/ext star stl znc200
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JET FITTINGCALock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70m4-0.7 hex kep lock nut external star lock washer steel class 8.8 zinc plated900
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QFCTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/YellowM4-0.70M4-.7 conical keps nut steel zinc yellow960
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QFCTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/YellowM4-0.70M4-.7 keps nut trivalent z/y1500
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METRO INDOHLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 keps lock nut bn 136432427
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Set ScrewILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 hex nut w/ external lockwasher zinc platedinquire
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TSFTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelPlainM4-0.70keps nut stl/zn rohs m4-0.7300
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TSFTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70hex keps nut w/ext l/w a2 ss m4-0.74965
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YANKEENHLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4 (.7) keps nut w/lock washer9930
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YANKEENHLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70M4 (.7) keps nut a2 (18-8)1731
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RCFastAZLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4M4 keps locknut cl8 cr+32600
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HewesNYLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4x 0.7 keps nut pl cl8 bn 136412550
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MESAFASTCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70keps nut100.0
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ACFCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 metric kep nut z/p rohs309
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ACFCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4M4 metric s/s kep nut7200
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CenturyFLLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 kep nut steel zinc (M4 KEP NUT STEEL ZINC ROHS) (M4 KEP NUT STEEL ZINC ROHS) 2157
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EmpireWALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4(0.7) conical washer keps locknut steel zp 10mm washer99500
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EurolinkSCLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM44 kep nut zinc plated kep nutinquire
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Irwin IndOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 kep nut steel zinc trivalent clear2324
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SISAZLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 hex keps nutstlzin1100
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NAPPCOTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.70 rohs zinc k locknut (keps) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS) (165-LOCKNUTS)10060
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MMCCILLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70keps type hex nut din 934tw class 8 zinc/clear204566
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MMCCILLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70keps type hex nut din 934tw a2 s/s plain20573
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MtrcSpecCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4-0.7 keps nut zcstock
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SJS ProdCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 kepnut st zp rohs w/nylon patch ()10000
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SJS ProdCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/YellowM4m4 kepnut st yellow zn rohs 13036
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SJS ProdCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelPlainM4m4 hex nut w/conical spring washer ap 859
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LibertyILLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70M4-0.7 hex keps nut a2 18-8 3046,000
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EndriesWILock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 keps locknut zinc671
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KomarILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70conical kep nut(7hx) w/10 whr10000
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GlobalCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70keps nut clear rohs3,006
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GlobalCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelNickelM4-0.70keps nut plate403
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TrifastTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 kep nut steel rohs zinc clr baked1000
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Alma BoltMILock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelPlainM4-0.70M4x.7 keps nut1300
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Cal FastenrsCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70kep nut 18-8 3046,387
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QFCTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.7 conical keps nut triv zinc1000
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QFCTXLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.7 keps nut steel zinc plating444
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AIHAZLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4-.7 keps nut9915
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GlobalCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Black OxideM4-0.70M4-.7 keps nut a21,888
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GlobalCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70M4-.7 keps nut a2 18-8 s/s702
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ASMCILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4x0.70 coarse keps nut low carb zp9,420
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MTPCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4 cl 8 zn hex nut w/conical l/washers192,524
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MTPCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4m4 st/zn hex kep ( k-lock) nuts340,552
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MTPCALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4m4 s.s a2-70 hex kep ( k-lock) nuts73,550
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LibertyILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70M4-.7 hex keps nut rohs6,000
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LibertyILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelNickelM4-0.70M4-.7 hex keps nut3,200
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LibertyILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/YellowM4-0.70M4-.7 hex keps nut & yellow4,100
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Kanebridge ILLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70m4-0.7 metric class 8 k lock nut zinc125,000
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IPCVALock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70M4-.7 keps nut din 1364 304 18-8 304 steel225
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Kanebridge ILLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70m4-0.7 metric k lock nut a2 stainless steel62.500
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8ASTM F1941-10 Fe/Zn-NiM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc nickel 600hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/GreenM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 olive drab astm f1941inquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8ASTM F1941-10 Fe/Zn-NiM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc nickel + topcoat 750hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9ASTM F1941-10 Fe/Zn-NiM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc nickel 600hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc flake-magni 565/575inquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc flake-geomet 500a 600hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc + topcoat 600hrs rrinquire
    Contact_Supplier
JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc flake-delta protektinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc flake-geomet 500a 600hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Zinc/YellowM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc yellow 96hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Zinc/GreenM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 olive drab astm f1941inquire
    Contact_Supplier
JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc flake-geomet 500b 1000hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9ASTM F1941-10 Fe/Zn-NiM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc nickel + topcoat 750hrs rrinquire
    Contact_Supplier
JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc flake-geomet 500b 1000hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc flake-magni 565/575inquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/YellowM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 8 zinc yellow 96hrs rrinquire
    Contact_Supplier
JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 12.9Zinc/ClearM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 12 zinc + topcoat 600hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 10.9Zinc/YellowM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 10 zinc yellow 96hrs rrinquire
    Contact_Supplier
JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 10.9ASTM F1941-10 Fe/Zn-NiM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 10 zinc nickel + topcoat 750hrs rrinquire
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JLanOntLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 10.9Zinc/ClearM4-0.70one-piece dual slotted hex locknut with integrated free spinning disc spring washer. class 10 zinc + topcoat 600hrs rrinquire
    Contact_Supplier
LibertyILLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 external countersunk lock spring rohs3,950
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OlanderCALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4-.7 kep nut stl blk rohs () ()1279
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MFSKSLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4conical keps hex nut15280
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SWACOOHLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4-0.70M4-0.7 keps nut a2 ss8986
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SWACOOHLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8PlainM4-0.70M4-0.7 keps nut cl8 stl zi-cr39595
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CenturyFLLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4M4 hex keps nut 18-8 304 steel 8798
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Field FasILLock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70(3) m4-.7 keps nut cl 8 stl zc/rohs kit in clear poly bag with label of part s6
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CenturyNYLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 keps nut steel zinc plt brighton 525032-pr22882
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EmpireWALock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8Zinc/ClearM4-0.70M4 (.7) kep nuts zinc cl86200
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CenturyNYLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 kep nut steel zy bn 136440000
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CenturyFLLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 keps nut steel zinc plt bn 1364 22882
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CenturyFLLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 kep nut stl hex. chrom. free bn 1364 43511
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CenturyNYLock Nut with Tooth L/W (K-Lock, Keps, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4M4 hex keps nut 18-8 304 steel8798
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CenturyNYLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 kep nut stl hex. chrom. free bn 1364106600
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CenturyFLLock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4M4 kep nut steel zy bn 1364 40000
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EmpireWALock Nut with Tooth L/W (K-Lock, Keps, etc.)SteelZinc/ClearM4-0.70m4 (.7) kep nuts zinc plated100
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JET FITTINGCALock Nut with Tooth L/W (K-Lock, Keps, etc.)Class 8.8PlainM4-0.70M4-0.7 keps nut cl8 stl zi-cr3 NKEP040CNUTZNTVSTL7277
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