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5/16 Heavy Hex Jam Nuts

Heavy Hex Jam Nuts are thinner than regular heavy hex nuts, but have similar dimensions across the flats and corners. Like regular hex jam nuts, heavy hex jam nuts can be threaded onto a bolt and run tight against the standard heavy hex nut which will lock the nut in place and prevent it from backing off. 

61 results, (click on any line for more information)

Buy Heavy Hex Jam Nuts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16nc heavy jam nut 18-8 s/s128
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WeaverWAHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 heavy hex jam nut zinc1694
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CenturyFLHeavy Hex Jam NutSteelPlain5/16-185/16-18 hvy hex jam nut (STEEL ZI & YEL) (STEEL ZI & YEL) 691
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CenturyFLHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hvy hex jam nut stl zi yel rohs (5/16-18 HVY HEX JAM NUT STEEL TRIVALENT ZINC YELLOW) (5/16-18 HVY HEX JAM NUT STEEL TRIVALENT ZINC YELLOW) 1293
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CenturyFLHeavy Hex Jam NutSteelPlain5/16-185/16-18 hvy hex jam nut (BRASS ZINC YELLOW) (BRASS ZINC YELLOW) 1300
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Future FastenerTXHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hvy jam nut plt300
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JacksonMSHeavy Hex Jam NutSteelZinc/Clear5/16nc heavy jam nut13965
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CenturyNYHeavy Hex Jam NutBrassZinc/Clear5/16-18 heavy hex jam nut brass trivalent zinc clear ()835
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YANKEENHHeavy Hex Jam NutSteelPlain5/16-185/16-18 heavy hex jam nut1600
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YANKEENHHeavy Hex Jam NutBrassPlain5/16-185/16-18 heavy hex jam nut brass170
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YANKEENHHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex jam nut stainless steel435
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YANKEENHHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-245/16-24 heavy hex jam nut stainless steel101
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CenturyFLHeavy Hex Jam NutGrade 2HZinc/Clear5/16-1891879a030 5/16-18 hvy jam nuts 2h material zinc plate (5/16-18 HVY JAM NUTS 2H MATERIAL ZINC PLATE) (5/16-18 HVY JAM NUTS 2H MATERIAL ZINC PLATE) 2
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CenturyFLHeavy Hex Jam NutBrassPlain5/16-185/16-18 hvy hex jam nut brass 34422
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HayesCAHeavy Hex Jam Nut400 Stainless (405, 410,416,420,430 etc.)Plain5/16-245/16-24 heavy hex jam nut 416 s/s1356
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 1/85/16-18 heavy hex jam nut 1/8 thk 18-8ss3100
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HayesCAHeavy Hex Jam NutBrassPlain5/16-185/16-18 heavy hex jam nut brass820
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex jam nut 18-8ss346
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-245/16-24 heavy hex jam nut 18-8ss128
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OlanderCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 hvy hx jam nut sst rohs49
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AbabaCAHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hvy jam h/n stl znc b18.2.21700
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ACCURATEILHeavy Hex Jam NutSteelZinc/Clear5/16-18hex jam nut heavy1663
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CenturyNYHeavy Hex Jam NutBrassPlain5/16-185/16-18 hvy hex jam nut brass34422
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CenturyNYHeavy Hex Jam NutBrassZinc/Clear5/16-18 heavy hex jam nut brass trivalent zinc clear835
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CenturyNYHeavy Hex Jam NutSteelZinc/Yellow5/16-18 hvy hex jam nut steel zi & yel zinc/yellow691
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CenturyNYHeavy Hex Jam NutBrassZinc/Yellow5/16-18 hvy hex jam nut brass zinc yellow1300
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CenturyNYHeavy Hex Jam NutSteelZinc/Yellow5/16-18 hvy hex jam nut stl zi yel rohs 5/16-18 hvy hex jam nut steel trivalent zinc yellow1293
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LibertyILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy hex jam nut 18-8 s/s330
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KomarILHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hex heavy jam nut(9/16x13/64) zinc4500
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AmericanNYHeavy Hex Jam NutSteelZinc/Yellow5/16-24heavy hex jam nut3000
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UNEEDANJHeavy Hex Jam NutSteelPlain5/16-18heavy hex jam nut4200
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Alma BoltMIHeavy Hex Jam NutSteelPlain5/16-18jam heavy hex nut1148
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Alma BoltMIHeavy Hex Jam NutSteelPlain5/16-18jam heavy hex nut1277
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METRO INDOHHeavy Hex Jam NutSteelPlain5/16-18heavy jam nut uss1400
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XL ScrewGAHeavy Hex Jam NutSteelPlain5/16-18heavy hex jam nuts4,000
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XL ScrewGAHeavy Hex Jam NutSteelZinc/Clear5/16-18heavy hex jam nuts zp4,000
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MidStatesMIHeavy Hex Jam NutBrassPlain5/16-24heavy hex jam nut brs322
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KomarILHeavy Hex Jam NutSteelZinc/Clear5/16-18hex heavy jam nut(9/16x13/64)4500
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IPCVAHeavy Hex Jam NutBrassPlain5/16-185/16-18 heavy hex jam nut brass260
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IPCVAHeavy Hex Jam NutSteelZinc/Yellow5/16-185/16-18 heavy hex jam nut steel zinc yellow635
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NutsBoltsNEHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 ss hvy hex jam nut
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy jam nut 18-8 stainless steel b18.2.25865
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ISSCOMOHeavy Hex Jam NutGrade 2Zinc/Clear5/16-18heavy hex jam nut z/p16500
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ISSCOMOHeavy Hex Jam NutGrade 2Plain5/16-18heavy hex jam nut8035
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ACFCAHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 heavy hex jam nut z/p rohs150
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ACFCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 s/s heavy hex jam nuts300
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ACFCAHeavy Hex Jam NutBrassPlain5/16-185/16-18 brass heavy hex jam nut541
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Marine FastenersFLHeavy Hex Jam NutBrassTin5/16-185/16-18 heavy hex jam nut brass/tin plate tin plate flash .00005-.00 rev a b18.2.235817
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Kanebridge ILHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 heavy hex jam nut zinc62.500
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Kanebridge ILHeavy Hex Jam NutGrade 5Zinc/Clear5/16-185/16-18 heavy hex jam nut grade 5 zinc100,000
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ZAL INDUSCAHeavy Hex Jam NutSteelPlain5/16-245/16-24 heavy hex jam nut1,000
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ZAL INDUSCAHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 heavy hex jam nut pltd125
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ZAL INDUSCAHeavy Hex Jam NutSteelZinc/Clear5/16-245/16-24 heavy hex jam nut pltd3,964
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FastWareSaskHeavy Hex Jam NutGrade 2Zinc/Clear5/16hvy hex jam nut99
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OBRIENOHHeavy Hex Jam NutSteelPlain5/16-18hvy hex jam nut50
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THRDFASTFLHeavy Hex Jam NutSteelZinc/Clear5/16-18heavy hex jam nut b18.2.21,891
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THRDFASTFLHeavy Hex Jam NutBrassPlain5/16-18heavy hex jam nut b18.2.21,609
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THRDFASTFLHeavy Hex Jam NutSteelZinc/Clear5/16-18heavy hex jam nut b18.2.21,991
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THRDFASTALHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-1818-8 ss heavy hex jam nut b18.2.297
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RevcarVAHeavy Hex Jam NutSteelPlain5/16-18heavy hex jam nut cad2,637
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RevcarVAHeavy Hex Jam Nut316, 317, A4 StainlessPlain5/16-18heavy hex jam nut 316 ss50
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