5/16-18 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. 

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
CenturyFLHeavy Hex Jam NutSteelPlain5/16-185/16-18 hvy hex jam nut691
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CenturyFLHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hvy hex jam nut stl zi yel rohs1293
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CenturyFLHeavy Hex Jam NutSteelPlain5/16-185/16-18 hvy hex jam nut1300
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UNEEDANJHeavy Hex Jam NutSteelPlain5/16-18heavy hex jam nut4200
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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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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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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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METRO INDOHHeavy Hex Jam NutSteelPlain5/16-18heavy jam nut uss1400
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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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ZAL INDUSCAHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 heavy hex jam nut pltd125
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ACCURATEILHeavy Hex Jam NutSteelZinc/Clear5/16-18hex jam nut heavy663
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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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Future FastenerTXHeavy Hex Jam NutSteelZinc/Clear5/16-185/16-18 hvy jam nut plt300
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RCFastAZHeavy Hex Jam NutGrade APlain5/16-18heavy hex jam nut a563 gra (thin)inquire
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RCFastAZHeavy Hex Jam NutGrade AZinc/Clear5/16-18heavy hex jam nut a563 gra (thin)inquire
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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 b18.2.2inquire
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BHAMALHeavy Hex Jam NutSteelCadmium5/16-185/16-18 jam flex loc-nut heavy cad plt200
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OlanderCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 hvy hx jam nut sst rohs50
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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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LibertyILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy jam nylon insert locknut 18-8 s/s5
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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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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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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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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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KomarILHeavy Hex Jam NutSteelZinc/Clear5/16-18hex heavy jam nut(9/16x13/64)5,500
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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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