M12 Serrated Flange Lock Nuts

Serrated Flange Lock Nuts, or Whiz-Lock® nuts, have a wide flange at one end that is serrated on the under side. On tightening, the serrations bite into the mating surface providing the locking feature.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
CenturyFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12din 6923 m 12.0 serrated flange nut250
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BoltCraftNELock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.75-600m12-1.75 serrated flange hex lock nut zinc 600/ctn83
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B & K FASTPALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.25m12-1.25 serrated flange locknuts cl 10 zinc #w196fl13
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IRFNJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75hex flange nut serrated cl.10 din 69234715
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IRFNJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75hex flange nut serrated cl.10 din 69234715
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IRFNJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75hex flange nut serrated cl.10 din 69234715
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IRFNJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75hex flange nut serrated cl.10 din 69234715
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IRFNJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75hex flange nut serrated cl.10 din 69234715
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/YellowM12m12 din 6923-serrated-8 yzn flange nuts1,600
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.25m12-1.25 jis b 1190-serr-8 zn flange nuts jis 17af35,240
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Black OxideM12m12 din 6923-serr-8 blk/ox flange nutsstock
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12m12 din 6923-serr-a2-70 s.s flange nutstock
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PhosphateM12-1.25m12-1.25 din 6923-10 no serr blk phosphate & oil flange nuts15,670
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.50m12-1.50 din 6923-serrated-10 st/zn flange nuts21,900
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.25m12-1.25 din 6923-serrated-10 st/zn flange nuts31,000
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12m12 din 6923-serrated-8 zn flange nuts a bb 100 fb 200 qk 100030,776
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-95m12 din 6923-serrated-10 st zn flange nuts 950/14,405
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12m12 din 6923-serr-s.s a2-70 flange nuts b bb 50 fb 100 qk 1000928
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.25-1190--8 x 17m12-1.25 jis b 1190-serrated-8 zn flange nuts jis 17af d bb 100 fb 200 qk 150055,688
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.25-1190--10 x 17m12-1.25 jis b 1190-serrated-10 zn flange nuts jis 17af53,200
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YANKEENHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.75-m12 x 1.75-hex flange nut-serrated-cl8 m889
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NAPPCOTXLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75serrated flange l/n s/s m12-1.75196
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VertexDILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75din6923 m12-1.75 hex serr flange nt cl8zinc18802
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VertexDILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8PlainM12din 6923 m12 non serrated flange nut cl89000
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MSTCMALock Nut, Flange, w serr. (Whiz-Lock etc.)316, 317, A4 StainlessPlainM12m12 din 6923 serr hex flange nut a4 ss100
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EndriesWILock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8PlainM12m12 class 8 hex serrated flange nut plain3800
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.50hex flange nut din 6923 class 8 zinc/clear6119
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.25hex flange nut din 6923 class 8 zinc/clear154530
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75hex flange nut din 6923 class 8 zinc/clear7494
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.75hex flange locknut din 6923v class 10 zinc/clear16765
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.75hex flange nut din 6923 class 10 zinc/clear3064
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75hex flange nut din 6923 a2 s/s plain468
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MMCCILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75hex flange nut din 6923 a2 s/s w/serr.964
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ASMCILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75coarse / iso 4161 cl8 hex flange nut with serration med carb zp din 6923244
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JacksonMSLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.50M12x1.50 fine serrated whiz flange locknut din 692325
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AbabaCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.25m12-1.25 whiz flange nut class 8 stl znc67
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Future FastenerTXLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12m12 serrated flange nut plt186
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JacksonMSLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.75M12x1.75 coarse serrated whiz flange locknut din 6923815
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BrikksenFLLock Nut, Flange, w serr. (Whiz-Lock etc.)316, 317, A4 StainlessPlainM12-1.75din 6923 a4 m12-1.75 serrated hex flange nut serrated2894
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APIIALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.75hex flange nut w/serrations 10 znc456
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RCFastAZLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12hex flange nut serrated stl cr+3 ( ) din 6923inquire
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ASFCORPMILock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75m12-1.75 full hgt fx flange serr lk nut cl 8 din w 196 fl tri zn fe/zn 5an22
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BAYFASTCOFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12hex flange nut serrated din 6923495
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OlanderCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.25m12-1.25 serr flng l/n whizlock100
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HBBOLTCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75hex serrated flange nut cl.8 z/p200
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AFIFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/YellowM12-10m12 serr hex flange nut c10 st zd rohs din69232879
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AFIFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/YellowM12-10m12 serr hex flange nut c10 st zd rohs2879
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XL ScrewGALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8PlainM12-1.75class 8 serr hex flange nuts din 6923600
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XL ScrewGALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75class 8 serr flange nuts zp din 6923600
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XL ScrewGALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.75class 10 serr flange nuts h t zp din 6923600
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XL ScrewGALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12-1.75class 10 serr flange nuts h t din 6923600
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12m12 din 6923-serr-8 zn flange nuts36,576
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12m12 din 6923-10 st zn flang nuts-serrated 950/5
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Black OxideM12-1.75 x 1012 x 1.75 class 10 serr flng /yell10,078
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.75hex flange nut iso 4161346329
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12-1.75hex flange nut iso 4161165680
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GLFOHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.75serr hex flg nut stl zc50
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/YellowM12-1.75m12-1.75 din 6923 metric class 10 hex flange nut non serrated zinc yellow12.500
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/YellowM12-1.75m12-1.75 din 6923 metric class 8 hex flange nut non serrated zinc yellow rohs12.500
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.75m12-1.75 din 6923 metric class 10 hex flange nut non serrated zinc bake rohs12.500
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75m12-1.75 din 6923 metric class 8 hex flange nut non serrated zinc rohs12.500
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75m12-1.75 din 6923 metric hex flange nut serrated a2 18-8 stainless steel12.500
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8Zinc/ClearM12-1.75m12-1.75 din 6923 metric class 8 hex flange nut serrated zinc12.500
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KomarMOLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/ClearM12-1.75whiz flange lock nut1,000
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8PlainM12m12 tensilok cl.8 plain finish tensilok nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlainM12m12 iso 4161 cl.12 plain finish hex flange nut (non-serrated)inquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 iso 4161 cl.10 plain finish hex flange nut (non-serrated)inquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12m12 din 6923 cl.10 zinc plated serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/ClearM12-1.50m12-1.5 din 6923 cl.10 zinc plated fine thread serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)316, 317, A4 StainlessPlainM12m12 din 6923 a4-80 stainless steel serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9PlainM12m12 din 6923 cl.10 plain finish serrated hex flange nutinquire
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EurolinkSCLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 8.8PlainM12m12 din 6923 cl.8 plain finish serrated hex flange nutinquire
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WurthINLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Aluminum zinc flake (Dacromet, Magnigard, Doerken)M12-1.75m12-1.75 serrated hex flange nut cl10 zinc flake (jdm f13b) see print n310299 pack 450 per rca1,606
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WurthINLock Nut, Flange, w serr. (Whiz-Lock etc.)Class 10.9Zinc/YellowM12m12 hex flange nut w/serration cl10 zinc/yellow3,925
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AALLNJLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75m12-1.75 hex flange nut, serrated, a2 stainless steel15000
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