5/16-18 Heavy Hex Nuts

Heavy Hex Nuts are larger and thicker than standard (finished) hex nuts.The heavy hex pattern is typically used for large diameter and high strength bolts, and with certain high-strength grades of steel can be used with structural bolts in structural applications.

10,121 Heavy Hex Nut, showing 200, (click on any line for more information)

Buy Heavy Hex Nuts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
NEHeavy Hex NutGrade AZinc/Clear5/16-185/16-18 heavy hex nut a563 grade a zinc
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Cal FastenrsCAHeavy Hex NutSteelZinc/Yellow5/16-18heavy hex nut dc hvy hex nut1,100
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Cal FastenrsCAHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18heavy hex nut 316 s/s hex heavy nut2,360
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Cal FastenrsCAHeavy Hex NutSteelPlain5/16-18heavy hex nut hvy hex nut2,400
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Cal FastenrsCAHeavy Hex NutGrade AGalvanized5/16-185/16-18 hvy hex nut steel a563 gr a hd galvanized hvy hex nut1,000
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B & K FASTPAHeavy Hex NutSteelPlain5/16-185/16-18 heavy hex nuts plain b18.2.2 b18.2.6209414
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B & K FASTPAHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nuts zinc b18.2.2 b18.2.625043
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UNEEDANJHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut 18-8 s/s200
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UNEEDANJHeavy Hex NutSteelPlain5/16-18heavy hex nut800
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UNEEDANJHeavy Hex NutSteelPlain5/16-18heavy hex nut969
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UNEEDANJHeavy Hex NutSteelPlain5/16-18heavy hex nut1000
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IRFNJHeavy Hex NutGrade BPlain5/16-18hex finish nut per astm a563 or per SAE j-99530
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SunPackFLHeavy Hex NutGrade 2HGalvanized5/16-185/16-18 a194 2h hvy hex nut hdg100
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SunPackFLHeavy Hex NutSteelPlain5/16-18a563 heavy hex nut5,774
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SunPackFLHeavy Hex NutSteelZinc/Clear5/16-18a563 heavy hex nut2,869
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SunPackFLHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18304 ss heavy hex nut67
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SunPackFLHeavy Hex NutGrade 8Plain5/16-18a194 gr8m ss heavy hex nut441
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SunPackFLHeavy Hex NutGrade 8Plain5/16-18a194 gr8 ss heavy hex nut62
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SunPackFLHeavy Hex Nut316, 317, A4 StainlessPlain5/16-185/16-18 316 ss hvy hex nut88
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SunPackFLHeavy Hex NutGrade 2HPlain5/16-18a194 2h hvy hex nut tapped over-size .0101
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SunPackFLHeavy Hex NutSteelPlain5/16-18a563 hex nut7,553
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SunPackFLHeavy Hex NutSteelPlain5/16-18a563 fin hex nut2,178
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SunPackFLHeavy Hex NutGrade 2HPlain5/16-18a194 2h heavy hex nut131
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SunPackFLHeavy Hex NutGrade 2HPlain5/16-18a194 2h heavy hex nut sermagard 1105/128037
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SunPackFLHeavy Hex NutGrade 2HFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18a194 2h hvy hex nut ptfe blue3
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GlobalCAHeavy Hex NutGrade 2HPlain5/16-182h heavy hex nut 18-8 ss494
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ACFCAHeavy Hex NutSteelPlain5/16-185/16-18 heavy hex nut plain723
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NAPPCOTXHeavy Hex NutGrade 2HPlain5/16-18hvy hex nut a194 gr 2h 5/16-186000
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NAPPCOTXHeavy Hex NutGrade 8Plain5/16-18heavy hex nut a194 g8 5/16-18 304 s/s500
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NAPPCOTXHeavy Hex NutGrade 8Plain5/16-18heavy hex nut a194 gr 8 5/16-186
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SWACOOHHeavy Hex NutGrade AZinc/Clear5/16-185/16-18 heavy hex nuts a563 gr a zn75
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HayesCAHeavy Hex NutSteelPlain5/16-185/16-18 heavy hex nut pln1334
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BHAMALHeavy Hex NutSteelZinc/Clear5/16-185/16-18 hvy hex nut zn b18.2.2 b18.2.6538
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BHAMALHeavy Hex NutGrade 8Plain5/16-185/16-18 heavy hex nut astm a194-gr8 ss b18.2.2 b18.2.69
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QCSORHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut zinc1930
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VertexDILHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 nc heavy hexnut 304 stainless345804
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VertexDILHeavy Hex Nut316, 317, A4 StainlessPlain5/16-185/16-18 nc heavy hex nut316 stainless104710
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VertexDILHeavy Hex NutBrassPlain5/16-185/16-18 nc heavy hex nut brass68932
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METRO INDOHHeavy Hex NutSteelZinc/Clear5/16-18heavy hex nut uss1930
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METRO INDOHHeavy Hex NutGrade 2HZinc/Yellow5/16-18heavy hex nut USS 2h /y1438
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NutsBoltsNEHeavy Hex NutSteelPlain5/16-185/16-18 hvy hex nut plain2479
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AmericanNYHeavy Hex NutGrade 2HPlain5/16-18heavy hex nuts 2h black600
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AmericanNYHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut 18-8 304738
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ZAL INDUSCAHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut pltd1,595
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General FMIHeavy Hex NutGrade 2Zinc/Clear5/16-18 x .25/16-18 heavy hex nut gr.2-zinc b18.2.2 b18.2.6135
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ACCURATEILHeavy Hex NutSteelNickel5/16-18hex nut heavy5200
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ACCURATEILHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18hex nut heavy 316 stainless2650
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AmericanNYHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut 18-8 304100
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CenturyFLHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut steel zinc rohs490
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CenturyFLHeavy Hex NutSteelPlain5/16-185/16-18 heavy hex nut1500
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CenturyFLHeavy Hex NutSteelPlain5/16-185/16-18 hvy hex nut4000
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Purchase MOHeavy Hex NutSteelBlack Oxide5/16-185/16-18 heavy hex nut stl blk oxide14287
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Big RedOKHeavy Hex NutGrade 2HPlain5/16-185/16-18 a194 2h heavy hex nuts plain finish441
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Big RedOKHeavy Hex NutGrade 2HZinc/Clear5/16-185/16-18 a194 2h heavy hex nuts zinc plated264
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Big RedOKHeavy Hex NutGrade 7Zinc/Clear5/16-185/16-18 a194 gr.7 heavy hex nuts zinc plated32
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Big RedOKHeavy Hex NutGrade B8Plain5/16-185/16-18 a194 b8 heavy hex nuts200
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Big RedOKHeavy Hex NutGrade B8MPlain5/16-185/16-18 a194 b8m heavy hex nuts453
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ASMCILHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18coarse heavy hex nut ss18-81,000
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ASMCILHeavy Hex NutGrade 2HZinc/Clear5/16-18coarse gr2h heavy hex nut low carb zp39
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ASMCILHeavy Hex NutGrade AZinc/Clear5/16-18coarse a563 gra heavy hex nut low carb zp50
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ASMCILHeavy Hex NutGrade AGalvanized5/16-18coarse a563 gra heavy hex nut low carb hdg2,000
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ASMCILHeavy Hex NutGrade APlain5/16-18coarse a563 gra heavy hex nut low carb2,150
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AbabaCAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 hvy h/n s/s b18.2.2 b18.2.6249
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AbabaCAHeavy Hex NutSteelZinc/Clear5/16-185/16-18 hvy h/n stl znc b18.2.2 b18.2.62900
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LippinCAHeavy Hex NutSteelZinc/Clear5/16-18hex nut heavy zinc plated6794
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LippinCAHeavy Hex NutGrade 2HPlain5/16-18hex nut heavy gr-2h plain6405
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JacksonMSHeavy Hex NutGrade B8Plain5/16-18nc astm a194-b8 heavy hex nut (304 18-8 304 )1007
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Future FastenerTXHeavy Hex NutSteelBlack Oxide5/16-185/16-18 heavy hex nut blk341
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Future FastenerTXHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut plt359
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Future FastenerTXHeavy Hex NutGrade 2HBlack Oxide5/16-185/16-18 2h heavy hex nut blk2,183
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Future FastenerTXHeavy Hex Nut316, 317, A4 StainlessPlain5/16-185/16-18 heavy hex nut (316)20
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Future FastenerTXHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex nut ss445
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BAYFASTCOFLHeavy Hex NutBrassPlain5/16-185/16-18 heavy hex nut brass10
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FastWareSaskHeavy Hex NutGrade 2Plain5/16-18nc heavy hex nut100
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FastWareSaskHeavy Hex NutGrade 2HPlain5/16-18nc hex nut 2h219
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PerigeeMIHeavy Hex NutBrassPlain5/16-18 x 9/16 x 19/64heavy hex nut b18.2.2 b18.2.6250
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PerigeeMIHeavy Hex NutGrade APlain5/16-18 x 9/16 x 19/64heavy hex nut b18.2.2 b18.2.6222
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JET FITTINGCAHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut steel zinc b18.2.2 b18.2.61560
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JET FITTINGCAHeavy Hex NutGrade 2HZinc/Yellow5/16-185/16-18 heavy hex nut steel 2h zinc yellow per astm b633-98 sc3 & bake b18.2.2 b18.2.6250
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QFCTXHeavy Hex NutSteelGalvanized5/16-185/16-18 heavy hex nut a563 hdg b18.2.2 b18.2.62,970
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QFCTXHeavy Hex NutGrade 2HZinc/Yellow5/16-185/16-18 hvy hex nut 2h yellow zinc b18.2.2 b18.2.6200
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SRFALHeavy Hex NutSteelZinc/Clear5/16-18heavy hex nut1,090
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BrikksenFLHeavy Hex NutBrassPlain5/16-185/16-18 heavy hex nut brass b18.2.2 b18.2.66500
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Wurth AdaMNHeavy Hex NutGrade AZinc/Clear5/16-18nut heavy hex grade a (zt) 5/16-181,450
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Wurth AdaMNHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18nut heavy hex s/s (18 8) (pl) 5/16-18500
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CNBILHeavy Hex NutGrade 2HPlain5/16-18a194 2h structural nut3680
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CNBILHeavy Hex NutGrade 2Plain5/16-18heavy hex nut gr.215140
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EBN IndusINHeavy Hex NutSteelPlain5/16-185/16-18 heavy hex nut b18.2.2 b18.2.62,326
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EBN IndusINHeavy Hex NutBrassPlain5/16-185/16-18 heavy hex nut brass b18.2.2 b18.2.6280
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WDMBIAHeavy Hex NutGrade AZinc/Clear5/16-18nut hvy hex gra (zt) 5/16-181261
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WDMBIAHeavy Hex NutGrade AZinc/Clear5/16-18nut hvy hex gra (zt) 5/16-181,100
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WDMBIAHeavy Hex NutGrade AZinc/Clear5/16-18nut hvy hex gra (zt) 5/16-18161
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ACFCAHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut z/p rohs192
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CertifiedILHeavy Hex NutSteelPlain5/16-185/16-18 grd. 2-hvy hex nut-zps. b18.2.2 b18.2.62,500
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DeltaTXHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18hvy hex nut 18-8 sst 5/16-181384
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DeltaTXHeavy Hex NutGrade 2HCadmium/Yellow5/16-18hvy hex nut a194-2h yellow cad 5/16-18683
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DeltaTXHeavy Hex NutGrade 2HPlain5/16-18hvy hex nut a194-2h plain 5/16-18288
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DeltaTXHeavy Hex NutGrade 2HFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18hvy hex nut a194-2h xylan blue 5/16-18229
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DeltaTXHeavy Hex NutGrade 2HFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18hvy hex nut a194-2h teflon blue 5/16-18224
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DeltaTXHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18hvy hex nut 316 sst 5/16-18920
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DeltaTXHeavy Hex NutGrade B8Plain5/16-18hvy hex nut a194-b8 sst 5/16-18375
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DeltaTXHeavy Hex NutGrade B8MPlain5/16-18hvy hex nut a194-b8m sst 5/16-18187
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DeltaTXHeavy Hex NutBrassPlain5/16-18hvy hex nut brass 5/16-18537
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DeltaTXHeavy Hex NutSteelPlain5/16-18full height hvy hex plain 5/16-18339
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DeltaTXHeavy Hex NutSteelCadmium5/16-18full height hvy hex cad 5/16-18518
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DeltaTXHeavy Hex NutSteelCadmium5/16-18thin height hvy hex cad 5/16-18248
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DeltaTXHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18full height hvy hex 18-8 sst 5/16-18101
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RCFastAZHeavy Hex NutGrade 2HPlain5/16-18heavy hex nut a194 2hinquire
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RCFastAZHeavy Hex NutGrade APlain5/16-18heavy hex nut a563 grainquire
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RCFastAZHeavy Hex NutGrade AZinc/Clear5/16-18heavy hex nut a563 gra cr+3inquire
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RCFastAZHeavy Hex NutGrade AGalvanized5/16-18heavy hex nut a563 gra hdginquire
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RCFastAZHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18heavy hex nut stainless 316inquire
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RCFastAZHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut 18-8 304inquire
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HodellOHHeavy Hex NutGrade 2HBlack Oxide5/16-185/16-18 hvy hex nut a194 2h blk/ox9
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HodellOHHeavy Hex NutSteelGalvanized5/16-185/16-18 hvy hex nut hdg2,830
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StandardMAHeavy Hex NutBrassPlain5/16-185/16-18 heavy full nut brass b18.2.2 b18.2.6inquire
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BHAMALHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18heavy hex nut 316 s/s40
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ASFCORPMIHeavy Hex NutGrade 2HPhosphate5/16-185/16-18 hvy hex nut a194 gr 2h gm 7114m pkg2,130
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JET FITTINGCAHeavy Hex NutSteelZinc/Clear5/16-18nut hex 5/1618 brnp hvy rohs compliant asme/ansi b18.2.2 b18.2.2 b18.2.6600
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HBBOLTCAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy nuts 18-898
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HBBOLTCAHeavy Hex NutSteelZinc/Clear5/16-18heavy hex nut2,866
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HBBOLTCAHeavy Hex NutSteelPlain5/16-18hvy hex nut4,888
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HBBOLTCAHeavy Hex NutGrade 5Plain5/16-18hvy hex nut gr.5400
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HBBOLTCAHeavy Hex NutGrade 2HPlain5/16-182h heavy hex nut7,154
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Spring BoTXHeavy Hex Nut400 Stainless (405, 410,416,420,430 etc.)Plain5/16-185/16(18) heavy hex nut ..a194 grade 6f (416ss) b18.2.2 b18.2.6 b18.2.2 b18.2.6 usainquire
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Spring BoTXHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-185/16(18) heavy hex nut 17-4 h1100 b18.2.2 b18.2.6 b18.2.2 b18.2.6 usainquire
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Spring BoTXHeavy Hex NutGrade 8Plain5/16-185/16(18) heavy hex nut ..a194 grade 8-t b18.2.2 b18.2.6 b18.2.2 b18.2.6 usainquire
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Spring BoTXHeavy Hex NutDuplex Stainless (2205, Ferralium etc.)Plain5/16-185/16(18) heavy hex nut d2205 b18.2.2 b18.2.6 b18.2.2 b18.2.6 usainquire
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Palmer BoltOHHeavy Hex NutSteelPlain5/16-18heavy hex nut1,778
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Spring BoTXHeavy Hex NutGrade 8Plain5/16-185/16(18) heavy hex nut ..a194 grade 8-t b18.2.2 b18.2.6 usainquire
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Spring BoTXHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-185/16(18) heavy hex nut 17-4 h1100 b18.2.2 b18.2.6 usainquire
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OBRIENOHHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18hvy hex nut 18-8 3041200
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OBRIENOHHeavy Hex NutSteelPlain5/16-18hvy hex nut2400
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MidStatesMIHeavy Hex NutGrade 2HZinc/Clear5/16-182h heavy hex nut znc37
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THRDFASTFLHeavy Hex NutBrassPlain5/16-18hvy hex nut b18.2.2 b18.2.63,663
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THRDFASTFLHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-1818-8 ss hvy hex nut b18.2.2 b18.2.6116
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THRDFASTFLHeavy Hex NutGrade APlain5/16-18a563 gr a hvy hex nut b18.2.2 b18.2.694
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THRDFASTFLHeavy Hex Nut Grade AGalvanized5/16-18a563 gr a hvy hex nut hdg b18.2.2 b18.2.688
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THRDFASTMSHeavy Hex NutGrade 2HPlain5/16-18a194 2h hvy hex nut b18.2.2 b18.2.690
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THRDFASTALHeavy Hex NutGrade 2HZinc/Clear5/16-18a194 2h hvy hex nut b18.2.2 b18.2.646
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THRDFASTALHeavy Hex NutGrade APlain5/16-18a563 gr a hvy hex nut domestic b18.2.2 b18.2.63000
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THRDFASTALHeavy Hex NutGrade AFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18a563 gr a hvy hex nut teflon blue b18.2.2 b18.2.61094
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THRDFASTMSHeavy Hex NutGrade 2HFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18a194 2h hvy hex nut teflon blue b18.2.2 b18.2.618
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LibertyILHeavy Hex NutGrade 2HZinc/Yellow5/16-185/16-18 heavy hex nut a194-2h .0004/.0005 .0004/.0005840
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LibertyILHeavy Hex NutSteelPlain5/16-18heavy hex nut3,100
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LibertyILHeavy Hex Nut316, 317, A4 StainlessPlain5/16-18heavy hex nut 316 stainless stainless80
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LibertyILHeavy Hex NutSteelZinc/Clear5/16-18heavy hex nut5,500
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LibertyILHeavy Hex NutSteelZinc/Yellow5/16-18heavy hex nut & yellow7,499
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LibertyILHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut 18-8 s/s 18-8 s/s171
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LibertyILHeavy Hex NutGrade 2HPlain5/16-18heavy hex nut a194-2h400
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ISSCOMOHeavy Hex NutGrade 2Zinc/Clear5/16-18heavy hex nut z/p42100
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NorthernMNHeavy Hex NutSteelZinc/Clear5/16-18s/o 5/16-18 nc heavy nut zinc500
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NorthernMNHeavy Hex NutGrade 2HPlain5/16-18s/o 5/16-18 nc 2h hvy nut plain3347
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HewesNYHeavy Hex NutSteelPlain5/16-18hvy hex nut265
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HewesNYHeavy Hex NutSteelZinc/Clear5/16-18hvy hex nut pl2500
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GUIDONNJHeavy Hex NutGrade APlain5/16-18750
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XL ScrewGAHeavy Hex NutSteelPlain5/16-18heavy hex nuts2,500
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XL ScrewGAHeavy Hex NutSteelZinc/Clear5/16-18heavy hex nuts zp2,500
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XL ScrewGAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated5/16-18heavy hex nuts 18-8 ss pass2,500
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XL ScrewGAHeavy Hex NutGrade 2HPlain5/16-18astm a194 2h heavy hex nuts single chamfered washer faced2,500
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Wurth IndD.F.Heavy Hex NutSteelPlain5/16-185/16-18 heavy hex nut82
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CONTAERONJHeavy Hex NutSteelPlain5/16-18heavy hex nut56458
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CONTAERONJHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18hvy thn s/s 2b waxed hex nut11237
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CONTAERONJHeavy Hex NutSteelZinc/Clear5/16-18hvy thin Cr3+ hex nut99810
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JFICAHeavy Hex NutSteelZinc/Clear5/16-181,250
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GLFOHHeavy Hex NutGrade 2HPlain5/16-18hvy hex nut a194 2h stl2702
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GLFOHHeavy Hex NutGrade BPlain5/16-18hvy hex nut a194 gr b-8m stainless nut19
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GLFOHHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18hvy hex nut 18-8 s/s nut50
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GLFOHHeavy Hex NutSteelZinc/Clear5/16-18hvy hex nut zc nut1950
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GLFOHHeavy Hex NutGrade 2HFluoropolymer (Xylan, Fluorokote, Teflon)5/16-18hvy hex nut a194 2h teflon nut743
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GLFOHHeavy Hex NutSteelPlain5/16-18hvy hex nut nut2500
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Kanebridge ILHeavy Hex NutGrade 2HPlain5/16-185/16-18 heavy hex nuts a194 2h plain imported50,000
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Kanebridge ILHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex nut 18-8 stainless steel25,000
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Kanebridge ILHeavy Hex NutSteelZinc/Clear5/16-185/16-18 heavy hex nut zinc50,000
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Kanebridge ILHeavy Hex NutGrade 5Zinc/Clear5/16-185/16-18 heavy hex nut grade 5 zinc50,000
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Kanebridge ILHeavy Hex NutSteelBlack Oxide5/16-185/16-18 heavy hex nut black oxide50,000
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Kanebridge ILHeavy Hex NutSteelCadmium5/16-185/16-18 flex type hex lock nut full height heavy hex cadmium and wax12.500
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Kanebridge ILHeavy Hex NutSteelCadmium5/16-185/16-18 flex type hex lock nut thin height heavy hex cadmium and wax12.500
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IRFNCHeavy Hex NutSteelPlain5/16-18heavy hex nut stl3900
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FACCAOntHeavy Hex NutSteelZinc/Clear5/16-18unc1300
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Mid-ValleyCAHeavy Hex NutBrassNickel5/16-18heavy hex nut b18.2.2 b18.2.6inquire
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Mid-ValleyCAHeavy Hex NutBrassPlain5/16-18heavy hex nut b18.2.2 b18.2.6inquire
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Valley NuWAHeavy Hex NutSteelPlain5/16-18nc hvy hex nut pl32
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Valley NuWAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18nc 18-8 ss hvy hex nut6
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Valley NuWAHeavy Hex NutGrade AGalvanized5/16-18nc a563 gr a hex nut hdg1210
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TimberlineCOHeavy Hex NutSteelPlain5/16-18hvy hx nut 5/16-181502
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Alma BoltMIHeavy Hex NutGrade APlain5/16-18heavy hex nut (a563 gr.a)2394
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Dan-LocTXHeavy Hex NutGrade 2HPlain5/16-185/16-18 astm a194 2h hvy hex nut non china6194
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Alma BoltMIHeavy Hex NutGrade B8MPlain5/16-18316 st. st. hvy hex nut (b8m)500
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Alma BoltMIHeavy Hex NutGrade B8MPlain5/16-18316 st. st. hvy hex nut (b8m)862
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Alma BoltMIHeavy Hex NutGrade AZinc/Clear5/16-185/16-18 zinc plated heavy hex nut (a563 gr.a)1382
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LightningLAHeavy Hex NutGrade 2HPlain5/16-18astm a194 2hm heavy hex nut526
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LightningLAHeavy Hex NutGrade AZinc/Clear5/16-18astm a563 gr. a heavy hex nut3003
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LightningLAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18hvy hex nut 316-ss720
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LightningLAHeavy Hex NutGrade 2HPlain5/16-18astm a194 gr. 2h heavy hex nut2440
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LightningLAHeavy Hex NutGrade APlain5/16-18astm a563 gr. a heavy hex nut180
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LightningLAHeavy Hex NutGrade 8Plain5/16-18a194 gr. 8 heavy hex nut stainless1802
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LightningLAHeavy Hex NutGrade AGalvanized5/16-18astm a563 gr. a heavy hex nut hot dipped2961
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AALLNJHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex nut, 18-8 304116
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QFSMIHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex USS threads (18-8)stock
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