1/2-13 Lock Nut, Flange, w serr. (Whiz-Lock etc.)

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 
RCFastAZLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Phosphate1/2-13hex serrated flange nut gr8 stl black phosinquire
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CNBILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated hex flange nut228
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YANKEENHLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 serrated flange locknut 18-8 stainless steel202
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B & K FASTPALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated flange nuts zinc b18.2.21194
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SIIINLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 zinc serrated flange nut) b18.2.2800
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MasFasCorpNVLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated hex flange nutinquire
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METRO INDOHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-13serrated flange nut uss223
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TSFTXLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13flange nut serrated stl zn 1/2-132
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YANKEENHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange nut81
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RCFastAZLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13hex flange nut serrated stl cr+3inquire
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ACCURATEILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr. hex flange locknut and bake828
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HewesNYLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr flange nut pl1373
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MESAFASTCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange nut420.0
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HBBOLTCALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13serrated hex flange nut 18-8 ss252
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 steel zn serreted flange lock nuts a bb 200 fb 1000 qk 5000927
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CenturyFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-131/2-13 serrated flange hex nut1189
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CenturyFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-131/2-13 serrated hex flange nut43
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CenturyFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-131/2-13 serr.hx.flange nuts261
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Bolts PlusOntLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange nut6488
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CascadeORLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Nickel1/2-1312000
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IndexFastCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13sfh1213sz 1/2-13 serrated flange hex nut steel/zincinquire
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NAPPCOTXLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange l/n steel zp 1/2-131722
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BAYFASTCOFLLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13flange nut serrated 18-8 3042350
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AmeriNYLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated flange nut zinc pl50
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AztechILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-13reg serr flange24,100
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AztechILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-13reg serr flange550
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AztechILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-13reg serr flange280
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AztechILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelPlain1/2-13lrg serr flange11,253
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LibertyILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13serrated flange nut 18-8 s/s12
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SISAZLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13hex flange serrated lock nut750
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Cal FastenrsCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13whiz flange nut Cr3+ serrated flange nut195
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StandardMALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 flange serrated nut 18-8 stainless steel b18.2.2inquire
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Future FastenerTXLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 hex serrated flange nut ss105
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Future FastenerTXLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrrated hex flange nut plt595
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 2Zinc/Clear1/2-131/2-13 gr.2-serr zn flange nuts a bb 200 fb 1000 qk 5000940
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SWACOOHLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-131/2-13 serr hex flange l/n gr8 stl zy800
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SJS ProdCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated hex flange lock nut st z
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NorthernMNLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Yellow1/2-13s/o 1/2-13 nc serr flange nut zinc/yellow (1500 pcs min)970
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SWACOOHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serr hex flange l/n stl zi251
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MFSKSLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange locknut13
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NutsBoltsNELock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 ss whizlock nut2,935
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-13serr flange nut gr8764
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Clear1/2-13hex flange nut w/serrations gr8 100/box47
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Phosphate1/2-13serr flange nut gr8 hard & blk phos & oil 500/box567
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WurthINLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 serrated hex flange nut 18-8 s/s package 300 per poly bag4,930
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ASFCORPMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 full hgt serr hex flange lk nut stl case hard tri zn fe/zn 5an332
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ASMCILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13coarse hex flange nut with serration case hardened low carb zp628
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KBSTNLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 hex flange nut serrated plated b18.2.211,207
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 2Zinc/Clear1/2-131/2-13 gr.2-serr zn flange nuts140
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 18-8 s.s serrated flange nut500
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 steel zn serreted flange lock nuts a bb 200 fb 1000 qk 5000927
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelBlack Oxide1/2-131/2-13 serrated flange hex lock nuts case hardened hr15n 78/90 black oxide6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated flange hex lock nuts case hardened hr15n 78/90 zinc and bake6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated large flange hex lock nuts case hardened hr15n 78/90 zinc and bake6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-131/2-13 serrated flange hex lock nuts grade 5 zinc6.250
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LibertyILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-13hex serrated flange nut100
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LibertyILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange nut zinc400
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-131/2-13 serrated flange hex lock nuts grade 8 zinc yellow6.250
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HBBOLTCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13hex serratd flange nut case hrd377
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13large serr flange nut case hard triv znc 50/box20460
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GLFOHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr hex flg nut stl zc367
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VertexDILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 serrated flangenut 18-8 stainless8335
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Yellow1/2-131/2-13 serrated flange hex lock nuts grade 5 zinc yellow6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 serrated flange hex lock nuts 18-8 stainless steel6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Plain1/2-131/2-13 serrated flange hex lock nuts grade 8 black phosphate6.250
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XL ScrewGALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange nuts case hard zp800
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange (hard) &225
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelBlack Oxide1/2-13serrated flange (hard) & black ox1020
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelCadmium1/2-13serrated flange (hard) & /yel96,000
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Nickel1/2-13serrated flange s/s,waxed1,241
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APIIALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-13nut hex flg serrated lock 1/2-13 zncl jds1,909
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ACFCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serrated flange whiz locknut z/p rohs100
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Bolts PlusOntLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelBlack Oxide1/2-13serrated flange nut50
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RevcarVALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13hex serr flange nut167,441
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RevcarVALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-13flange nylon insert l/n 96 hour salt spray Cr3+ to white rust w/super seal82,209
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AccutiteCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13hex flange nut w/serrations700
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AALLNJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange lock nut,110
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MTPCALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 steel zn serreted flange lock nuts a bb 200 fb 1000 qk 5000927
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WMTSMILock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 serr. flange nut 18-8 b18.2.2113
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WMTSMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serr. flange nut z b18.2.2363
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WMTSMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 large flange serr. nut z b18.2.2325
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WDMBIALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Yellow1/2-131/2-13 serr flg ln top lock z&y720
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ASMCILLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13coarse hex flange nut with serration ss18-8 b18.2.2550
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EndriesWILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Yellow1/2-13serr flng l/n ywzc case hard53282
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EndriesWILock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-1318-8 serr flng l/n42057
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EndriesWILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr flng l/n zc case hard1040695
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BuckeyeOHLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade FZinc/Clear1/2-131/2-13 nylon insert flange lock nut grade f zinc platedinquire
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BuckeyeOHLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 flange whiz lock nut - zinc platedinquire
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LibertyILLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated large flange nut1,000
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CONTAERONJLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated flange (hard) lock nut triv4785
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MidStatesMILock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Plain1/2-13serr flg l/n gr 825
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KL SalesWILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13whiz flange nut stl znc2,035
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KL SalesWILock Nut, Flange, w serr. (Whiz-Lock etc.)316, 317, A4 StainlessPlain1/2-13whiz flange nut 316/a450
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KL SalesWILock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13whiz flange nut 18-8/a255
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr flange nut case hard znc 50/box408
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-131/2-13 serrated lrg flange hx lock nut gr8 zinc yellow6.250
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Kanebridge ILLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-131/2-13 serrated lrg flange hx lock nut gr5 zinc6.250
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NorthernMNLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelBlack Oxide1/2-131/2-13 #8 serr flange nut black rie4037a400
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WDMBIALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Yellow1/2-13serr flg ln hard z&y20092
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ManscoMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 top lock flange nut w/no serrations123
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TrinityIALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Clear1/2-131/2 - 13 hex flange lock nut serrated sae gr 8 j995 znpo7716
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TrinityIALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Yellow1/2-131/2 - 13 hex flange lock nut serrated spcl gr5 j995 carburized znyel19522
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SBSMALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serrated hex flange lknut
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TimberlineCOLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13serr flng lk-nut ss 1/2-13299
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WDMBIALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13serr flg ln 18-8 ss486
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TimberlineCOLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr flng nut zn 1/2-1311
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Valley NuWALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Black1/2-13nc serrated flange lock nut zb112
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WDMBIALock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 8Zinc/Yellow1/2-13serr flg ln gr 8 z&y hard750
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GLFOHLock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13serr hex flg nut 18-8 s/s nut100
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AFIFLLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 hex serr flange nut st zn rohs390
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AFIFLLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-131/2-13 serr flange nut g5 st zn1000
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EmpireWALock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 serr flange l/n zp318
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TimberlineCOLock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-13serr flng nut zn 1/2-1364396
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ASFCORPMILock Nut, Flange, w serr. (Whiz-Lock etc.)SteelZinc/Clear1/2-131/2-13 full hgt serr hx flg lk nut stl case hard tri zn fe/zn 5an pkg150
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SWACOOHLock Nut, Flange, w serr. (Whiz-Lock etc.)Grade 5Zinc/Clear1/2-131/2-13 serr hx flng l/n gr5 zi41319
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Valley NuWALock Nut, Flange, w serr. (Whiz-Lock etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13nc 18-8 ss serrated flange locknut4
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