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1/2 Heavy Hex Nuts (ASME B18. 2.6)

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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BHAMALHeavy Hex NutSilicon BronzePlain1/2-131/2-13hvy hex nut sil brz b18.2.2 b18.2.620
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BHAMALHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 81/2-13 hvy hex nut a194-8m s/s b18.2.2 b18.2.626
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BHAMALHeavy Hex Nut316, 317, A4 StainlessPlain1/2-131/2-13 hvy hex nut 316ss b18.2.2 b18.2.65600
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AbabaCAHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 hvy h/n astm a194 gr 2h per spec hdg b18.2.2 b18.2.6679
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AbabaCAHeavy Hex NutASTM A563 Grade DHGalvanized1/2-131/2-13 hvy h/n domestic astm a563 dh per spec hdg b18.2.2 b18.2.67
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AbabaCAHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy h/n astm a194 gr 2h per spec pln b18.2.2 b18.2.6948
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AbabaCAHeavy Hex NutSteelPlain1/2-131/2-13 hvy h/n astm a563 per spec pln b18.2.2 b18.2.69
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AbabaCAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 hvy h/n s/s b18.2.2 b18.2.6103
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AbabaCAHeavy Hex NutSteelPlain1/2-131/2-13 hvy h/n stl pln b18.2.2 b18.2.6100
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AbabaCAHeavy Hex NutSteelZinc/Clear1/2-131/2-13 hvy h/n stl znc b18.2.2 b18.2.6360
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GLFOHHeavy Hex NutASTM A563 Grade DHGalvanized1/2-131/2-13 hvy hex nut a563dh stl hdg b18.2.2 b18.2.6 () () ()421
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GLFOHHeavy Hex NutGrade 2HZinc/Yellow1/2-201/2-20 hvy hex nut a194 2h stl zy b18.2.2 b18.2.6 () () ()1
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GLFOHHeavy Hex NutGrade AFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-131/2-13 hvy hex nut a563 gr a stl teflon b18.2.2 b18.2.6 () () ()2
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GLFOHHeavy Hex Nut316, 317, A4 StainlessPlain1/2-131/2-13 hvy hex nut 316 s/s b18.2.2 b18.2.6 () () ()68
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GLFOHHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 hvy hex nut a194 2h stl hdg b18.2.2 b18.2.6 () () ()3863
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GLFOHHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy hex nut a194 2h stl pln b18.2.2 b18.2.6 () () ()3044
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GLFOHHeavy Hex NutGrade B8MPlain1/2-131/2-13 hvy hex nut a194 gr 8m s/s b18.2.2 b18.2.6 () () ()50
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GLFOHHeavy Hex NutGrade B8Plain1/2-131/2-13 hvy hex nut sa194 gr 8 s/s b18.2.2 b18.2.6 () () ()24
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GLFOHHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 hvy hex nut a194 2h stl zc b18.2.2 b18.2.6 () () ()1000
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GLFOHHeavy Hex NutSteelPlain1/2-131/2-13 hvy hex nut stl pln b18.2.2 b18.2.6 () () ()1150
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GLFOHHeavy Hex NutGrade CPlain1/2-131/2-13 hvy hex nut a563 gr c stl pln b18.2.2 b18.2.6 () () ()42
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GLFOHHeavy Hex NutGrade CZinc/Clear1/2-131/2-13 hvy hex nut a563 gr c stl zc b18.2.2 b18.2.6 () () ()28
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GLFOHHeavy Hex NutSteelZinc/Clear1/2-131/2-13 hvy hex nut stl zc b18.2.2 b18.2.6 () () ()3300
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GLFOHHeavy Hex NutGrade 2HFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-131/2-13 hvy hex nut a194 2h stl teflon b18.2.2 b18.2.6 () () ()546
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GLFOHHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 hvy hex nut a563 gr dh stl pln b18.2.2 b18.2.6 () () ()1572
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GLFOHHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 hvy hex nut a194 2h stl zc domestic b18.2.2 b18.2.6 () () ()320
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Irwin IndOntHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 unc astm a194 2h hex nuts zinc b18.2.2 b18.2.6600
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AbabaCAHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy h/n astm a194 gr 2h per spec pln b18.2.2 b18.2.675
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AbabaCAHeavy Hex NutSteelPlain1/2-131/2-13 hvy h/n stl pln b18.2.2 b18.2.650
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SIIINHeavy Hex NutSteelPlain1/21/2 a563 heavy hex nut (usa) b18.2.2 b18.2.62769
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SIIINHeavy Hex NutSteelPlain1/21/2 a563 heavy hex nut plain b18.2.2 b18.2.6382
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GLFOHHeavy Hex NutSteelZinc/Clear1/2-131/2-13 hvy hex nut a563 stl zc b18.2.2 b18.2.6 54
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JET FITTINGCAHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 a563 heavy hex nut gr dh stl 335056 b18.2.2 b18.2.62888
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StandardMAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy full nut 18-8 stainless steel b18.2.2 b18.2.62133
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StandardMAHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 heavy hex nut gr 2h galvanized b18.2.2 b18.2.64250
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StandardMAHeavy Hex NutBrassPlain1/2-131/2-13 heavy full nut brass b18.2.2 b18.2.615129
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StandardMAHeavy Hex NutSilicon BronzePlain1/2-131/2-13 heavy full nut silicon bronze b18.2.2 b18.2.62125
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General FMIHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy hex nut astm a194 grade 2h b18.2.2 b18.2.639000
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QFCTXHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy hex nut 2h plain b18.2.2 b18.2.6606
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QFCTXHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy hex nut 2h plain b18.2.2 b18.2.6110
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QFCTXHeavy Hex NutSteelPlain1/2-131/2-13 hvy hex nut plain b18.2.2 b18.2.655
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QFCTXHeavy Hex NutSteelPlain1/2-131/2-13 hvy hex nut plain b18.2.2 b18.2.6198
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QFCTXHeavy Hex NutSteelPlain1/2-131/2-13 hvy hex nut plain b18.2.2 b18.2.6232
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QFCTXHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 hvy hex nut a563 gr. dh plain b18.2.2 b18.2.6100
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QFCTXHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 hvy hex nut a563 gr. dh plain b18.2.2 b18.2.61251
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QFCTXHeavy Hex NutASTM A563 Grade DHGalvanized1/2-131/2-13 hvy hex nut a563 gr. dh hdg dom b18.2.2 b18.2.63220
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QFCTXHeavy Hex NutGrade 2HPlain1/2-131/2-13 hvy hex nut a194 gr. 2h plain imp b18.2.2 b18.2.6551
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QFCTXHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 heavy hex nut grade 2h galvanized b18.2.2 b18.2.6700
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QFCTXHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 heavy hex nut grade 2h galvanized b18.2.2 b18.2.680
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QFCTXHeavy Hex NutASTM A563 Grade DHGalvanized1/2-131/2-13 hvy hex nut a563 gr. dh hdg imp b18.2.2 b18.2.65228
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QFCTXHeavy Hex NutSilicon BronzePlain1/2-131/2-13 heavy hex nut silicon bronze b18.2.2 b18.2.6539
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QFCTXHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex nut 18-8 s/s b18.2.2 b18.2.61465
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QFCTXHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex nut 18-8 s/s b18.2.2 b18.2.6884
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QFCTXHeavy Hex NutGrade B8Plain1/2-131/2-13 heavy hex nut a194 gr. 8 304 ss domestic b18.2.2 b18.2.684
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QFCTXHeavy Hex NutGrade B8Plain1/2-131/2-13 heavy hex nut a194 gr. 8 304 ss domestic b18.2.2 b18.2.698
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QFCTXHeavy Hex NutGrade B8Plain1/2-131/2-13 heavy hex nut a194 gr. 8 304 ss domestic b18.2.2 b18.2.6356
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QFCTXHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 hvy hex nut tapped oversize gr.dh b18.2.2 b18.2.63069
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QFCTXHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 hvy hex nut a563 dh t/o domestic b18.2.2 b18.2.634
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B & K FASTPAHeavy Hex NutGrade 2HGalvanized1/2-131/2-13 a194 2h heavy hex nuts galv b18.2.2 b18.2.6388
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B & K FASTPAHeavy Hex NutGrade 2HPlain1/2-131/2-13 a194 2h heavy hex nuts plain b18.2.2 b18.2.69
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B & K FASTPAHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 a194 2h heavy hex nuts zinc domestic b18.2.2 b18.2.663
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B & K FASTPAHeavy Hex NutBrassPlain1/2-131/2-13 brass heavy hex nuts b18.2.2 b18.2.68
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B & K FASTPAHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 a194 2h heavy hex nuts zinc b18.2.2 b18.2.635
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B & K FASTPAHeavy Hex NutASTM A563 Grade DHGalvanized1/2-131/2-13 dh heavy hex nuts galv blue domestic b18.2.2 b18.2.6775
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B & K FASTPAHeavy Hex NutASTM A563 Grade DHPlain1/2-131/2-13 dh hvy hex nut plain b18.2.2 b18.2.64962
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B & K FASTPAHeavy Hex NutSteelPlain1/2-131/2-13 heavy hex nuts plain b18.2.2 b18.2.6525
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B & K FASTPAHeavy Hex NutSteelZinc/Clear1/2-131/2-13 heavy hex nuts zinc b18.2.2 b18.2.626910
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B & K FASTPAHeavy Hex NutGrade CGalvanized1/2-131/2-13 a563 gr c heavy hex nuts galv. b18.2.2 b18.2.6287
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B & K FASTPAHeavy Hex NutGrade CPlain1/2-131/2-13 a563 gr c heavy hex nuts plain b18.2.2 b18.2.6192
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B & K FASTPAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex nuts 18-8 stainless b18.2.2 b18.2.650
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B & K FASTPAHeavy Hex Nut316, 317, A4 StainlessPlain1/2-131/2-13 heavy hex nut stainless t-316 b18.2.2 b18.2.6201
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B & K FASTPAHeavy Hex NutGrade B8Plain1/2-131/2-13 heavy hex nut a194b8 stainless b18.2.2 b18.2.64
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BHAMGAHeavy Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 321 ss heavy hex nuts b18.2.2 b18.2.615
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BHAMGAHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/2-131/2-13 incoloy 718 heavy hex nuts b18.2.2 b18.2.66
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BHAMGAHeavy Hex NutDuplex Stainless (2205, Ferralium etc.)Plain1/2-13 x 1001/2-13 z100 super duplex stainless heavy hex nuts b18.2.2 b18.2.69
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BHAMGAHeavy Hex NutGrade 2HPlain1/2 x 821/2 a194 8cl2heavy hex nuts b18.2.2 b18.2.6200
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BHAMGAHeavy Hex NutGrade 2HPlain1/2 x 821/2 a194 8cl2heavy hex nuts b18.2.2 b18.2.643
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BHAMGAHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/21/2 hastelloy c276 heavy hex nuts b18.2.2 b18.2.632
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BHAMGAHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/2-131/2-13 hastelloy c276 heavy hex nuts b18.2.2 b18.2.624
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BHAMGAHeavy Hex Nut316, 317, A4 StainlessPlain1/21/2 f594g 316 ss heavy hex nuts b18.2.2 b18.2.635
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BHAMGAHeavy Hex NutSilicon BronzePainted1/2-201/2-20 bronze 655 heavy hex nuts b18.2.2 b18.2.612
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BHAMGAHeavy Hex NutSteelPlain1/21/2 4140 hvy hex nuts b18.2.2 b18.2.640
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BHAMGAHeavy Hex NutGrade 7Plain1/21/2 a194 grade l7 heavy hex nuts b18.2.2 b18.2.632
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BHAMGAHeavy Hex NutDuplex Stainless (2205, Ferralium etc.)Plain1/2-131/2-13 duplex 2205 stainless heavy hex nuts b18.2.2 b18.2.620
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BHAMGAHeavy Hex NutDuplex Stainless (2205, Ferralium etc.)Plain1/2-131/2-13 super duplex 2507 stainless heavy hex nuts b18.2.2 b18.2.6100
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Marine FastenersFLHeavy Hex NutSteelPlain1/2-131/2-13 hvy hex nut a194b8m b18.2.2 b18.2.634672
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OSSCORIHeavy Hex NutSteelPlain1/2-131/2-13 heavy hex nut b18.2.2 b18.2.6958
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OSSCORIHeavy Hex NutGrade CPlain1/2-131/2-13 heavy hex nut a563 grade c b18.2.2 b18.2.6593
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OSSCORIHeavy Hex NutSteelPlain1/2-131/2-13 heavy hex nut domestic(usa) b18.2.2 b18.2.635
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QFCTXHeavy Hex NutGrade APlain1/2-131/2-13 hvy hex nut grd a black b18.2.2 b18.2.62000
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QFCTXHeavy Hex NutGrade B8Plain1/2-131/2-13 heavy hex nut a194 gr. b8 304ss b18.2.2 b18.2.6386
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QFCTXHeavy Hex NutGrade APlain1/2-131/2-13 heavy hex nut a563 grade a plain b18.2.2 b18.2.6200
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QFCTXHeavy Hex NutGrade 8Plain1/2-131/2-13 hvy hex nut a194 gr8 304 b18.2.2 b18.2.6242
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QFCTXHeavy Hex NutGrade 2HZinc/Clear1/2-131/2-13 2h hvy hex nut zinc b18.2.2 b18.2.624
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Bostwick INHeavy Hex NutGrade 2HPlain1/2-131/2-13 2h heavy hex nut b18.2.2 b18.2.62
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Bostwick INHeavy Hex NutGrade 2HFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-131/2-13 a194-2hm hvy hex nut fluorokote #1 blue b18.2.2 b18.2.653
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Bostwick INHeavy Hex NutGrade 2HPlain1/2-201/2-20 2h heavy hex nut b18.2.2 b18.2.676
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Bostwick INHeavy Hex Nut316, 317, A4 StainlessPlain1/2-201/2-20 heavy hex nut 316 stainless b18.2.2 b18.2.677
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PerigeeMIHeavy Hex NutBrassPlain1/2-13 x 7/8 x 31/641/2-13 x 7/8 x 31/64 heavy hex nut b18.2.2 b18.2.6192
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PerigeeMIHeavy Hex NutNi-Cu Alloy (Monel, K-Monel, etc.)Plain1/2-13 x 7/8 x 31/641/2-13 x 7/8 x 31/64 heavy hex nut b18.2.2 b18.2.6158
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PerigeeMIHeavy Hex NutGrade 7Plain1/2-13 x 7/8 x 31/641/2-13 x 7/8 x 31/64 heavy hex nut b18.2.2 b18.2.6261
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PerigeeMIHeavy Hex NutGrade 7Plain1/2-13 x 7/8 x 31/641/2-13 x 7/8 x 31/64 heavy hex nut b18.2.2 b18.2.6430
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PerigeeMIHeavy Hex NutGrade 2Cadmium1/2-13 x 7/8 x 5/161/2-13 x 7/8 x 5/16 heavy hex jam nut b18.2.2 b18.2.61843
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PerigeeMIHeavy Hex NutGrade 8Plain1/2-13 x 7/8 x 31/641/2-13 x 7/8 x 31/64 heavy hex nut b18.2.2 b18.2.682
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PerigeeMIHeavy Hex NutGrade 8Plain1/2-13 x 7/8 x 25/321/2-13 x 7/8 x 25/32 heavy high hex nut b18.2.2 b18.2.639
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JET FITTINGCAHeavy Hex NutGrade 2HZinc/Yellow1/2-131/2-13 heavy hex nut steel 2h zinc yellow b18.2.2 b18.2.62054
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WurthOntHeavy Hex NutGrade APlain1/2-13nut hvy hx gra (pl) 1/2-13 b18.2.2 b18.2.6500
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NWFASTTXHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/2-131/2-13 heavy hex nut alloy 718 nickel-chromium heat treated to rc 36-40 b18.2.2 b18.2.673
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THRDFASTFLHeavy Hex NutGrade 5Plain1/2-13gr5 hvy hex nut left hand b18.2.2 b18.2.683
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THRDFASTFLHeavy Hex NutGrade 2HFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-13a194 2h hvy hex nut teflon blue b18.2.2 b18.2.621
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THRDFASTFLHeavy Hex NutASTM A563 Grade DHGalvanized1/2-13gr dh hvy hex nut mech b18.2.2 b18.2.632
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THRDFASTFLHeavy Hex NutGrade 2HGalvanized1/2-13a194 2h hvy hex nut mech b18.2.2 b18.2.618
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THRDFASTFLHeavy Hex NutGrade 2HPlain1/2-13a194 2h hvy hex nut mod. b18.2.2 b18.2.612
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THRDFASTFLHeavy Hex NutBrassPlain1/2-13hvy hex nut b18.2.2 b18.2.61
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THRDFASTOKHeavy Hex NutGrade 2HZinc/Yellow1/2-13a194 2h hvy hex nut z&y b18.2.2 b18.2.6666
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THRDFASTOKHeavy Hex Nut316, 317, A4 StainlessPlain1/2-13t-316 ss hvy hex nut domestic b18.2.2 b18.2.62
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THRDFASTALHeavy Hex NutAluminumPlain1/2-131/2-13 alum hvy hex nut 205 finish b18.2.2 b18.2.6325
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THRDFASTALHeavy Hex NutGrade 7Fluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-13gr7 hvy nut teflon black b18.2.2 b18.2.6323
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THRDFASTALHeavy Hex NutASTM A563 Grade DHPlain1/2-13gr dh hvy hex nut domestic b18.2.2 b18.2.6101
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THRDFASTALHeavy Hex NutASTM A563 Grade DHPlain1/2-13gr dh hvy hex nut domestic b18.2.2 b18.2.677
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THRDFASTALHeavy Hex NutGrade 2HCadmium1/2-13a194 2h hvy hex nut b18.2.2 b18.2.614
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THRDFASTALHeavy Hex NutGrade 7Fluoropolymer-Based (Xylan, Fluorokote, Teflon)1/2-13gr7 hvy hex nut teflon blue b18.2.2 b18.2.67
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THRDFASTALHeavy Hex NutASTM A563 Grade DHPlain1/2-13gr dh hvy hex nut tapped .02 b18.2.2 b18.2.656
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KBSTNHeavy Hex NutGrade 8Plain1/2-131/2-13 hvy hex nut a194 gr.8f 303s/s b18.2.2 b18.2.6427
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THRDFASTALHeavy Hex NutGrade 2HPlain1/2-13a194 2h hvy hex nut b18.2.2 b18.2.631450
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THRDFASTALHeavy Hex Nut316, 317, A4 StainlessPlain1/2-13t-316 ss hvy hex nut b18.2.2 b18.2.624
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THRDFASTOKHeavy Hex NutASTM A563 Grade DHPlain1/2-13gr dh hvy hex nut b18.2.2 b18.2.6300
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THRDFASTOKHeavy Hex NutGrade AGalvanized1/2-13a563 gr a hvy hex nut hdg b18.2.2 b18.2.67
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THRDFASTFLHeavy Hex NutGrade 2HZinc/Clear1/2-13a194 2h hvy hex nut b18.2.2 b18.2.666
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THRDFASTOKHeavy Hex NutGrade 2HCadmium1/2-13a194 2h hvy hex nut b18.2.2 b18.2.616
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THRDFASTOKHeavy Hex NutGrade 2HPlain1/2-13a194 2h hvy hex nut tapped .01 oversize b18.2.2 b18.2.615
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THRDFASTALHeavy Hex NutSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/2-13hvy hex nut b18.2.2 b18.2.612
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THRDFASTOKHeavy Hex NutGrade 2HGalvanized1/2-13a194 2h hvy hex nut hdg tectyl 3217 b18.2.2 b18.2.6795
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THRDFASTOKHeavy Hex NutASTM A563 Grade DHGalvanized1/2-13gr dh hvy hex nut mech b18.2.2 b18.2.6568
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THRDFASTOKHeavy Hex NutGrade 2HGalvanized1/2-13a194 2h hvy hex nut hdg b18.2.2 b18.2.613
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THRDFASTOKHeavy Hex NutGrade 2HZinc/Clear1/2-132h hvy nut infasco b18.2.2 b18.2.6476
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THRDFASTALHeavy Hex NutNi-Cu Alloy (Monel, K-Monel, etc.)Nickel1/2-13hvy hex nut b18.2.2 b18.2.63
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THRDFASTMSHeavy Hex NutGrade 7Plain1/2-13gr7 hvy hex nut b18.2.2 b18.2.652
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THRDFASTOKHeavy Hex NutGrade 2HGalvanized1/2-13a194 2h hvy hex nut hdg domestic b18.2.2 b18.2.614
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WSBKYHeavy Hex NutGrade 2HGalvanized1/2-13nut heavy hex gr2h (hdg) 1/2-13 b18.2.2 b18.2.6189,600
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WSBKYHeavy Hex NutGrade 8Plain1/2-13nut heavy hex a194 gr8 (pl) 1/2-13 b18.2.2 b18.2.61,515
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WSBKYHeavy Hex NutSteelGalvanized1/2-13nut heavy hex st (hdg) 1/2-13 usa b18.2.2 b18.2.61,023
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WSBKYHeavy Hex NutGrade 2HZinc/Yellow1/2-13q/nut heavy hex gr2h zy 1/2-13 b18.2.2 b18.2.6875
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