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3/8 Jam Nuts (ASME B18. 2.2)

Hex Jam Nuts have a lower profile than a standard hex nut but have the same dimension across the flats and corners. A hex jam nut can be threaded onto a bolt and run tight against a standard nut which will lock the nut in place and prevent it from backing off. Thus hex jam nuts may sometimes be used as locking nuts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
PerigeeMIHex Jam NutSteelBlack Oxide3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 hex jam nut b18.2.2155
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PerigeeMIHex Jam NutSteelBlack Oxide3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 hex jam nut b18.2.2124
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PerigeeMIHex Jam NutGrade 8Plain3/8-24 x 9/16 x 7/323/8-24 x 9/16 x 7/32 scwf fin hex jam nut 3b thread rolled thread b18.2.2123
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PerigeeMIHex Jam NutGrade 5Plain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 scwf fin hex jam nut b18.2.22117
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AbabaCAHex Jam Nut316, 317, A4 StainlessPlain3/8-163/8-16 fin jam h/n 316 s/s b18.2.2400
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AbabaCAHex Jam NutBrassPlain3/8-163/8-16 fin jam h/n brass b18.2.2424
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AbabaCAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 fin jam h/n s/s b18.2.2100
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AbabaCAHex Jam NutSteelPlain3/8-163/8-16 fin jam h/n al-2000 (black) stl b18.2.2805
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AbabaCAHex Jam NutSteelZinc/Clear3/8-163/8-16 fin jam h/n stl znc b18.2.21352
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AbabaCAHex Jam NutSteelPlain3/8-163/8-16 l.h. jam nut stl pln b18.2.233
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AbabaCAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-243/8-24 fin jam h/n s/s b18.2.2489
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AbabaCAHex Jam NutSteelZinc/Clear3/8-243/8-24 fin jam h/n stl znc b18.2.25682
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AbabaCAHex Jam NutSteelZinc/Clear3/8-243/8-24 l.h. jam nut stl znc b18.2.2371
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GLFOHHex Jam NutGrade 5Plain3/8-243/8-24 lh fin hex jam nut grade 5 stl pln b18.2.2 () () ()593
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GLFOHHex Jam NutSteelPlain3/8-163/8-16 fin hex jam nut stl pln b18.2.2 () () ()85
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GLFOHHex Jam NutGrade 8Zinc/Yellow3/8-163/8-16 fin hex jam nut gr 8 stl zy b18.2.2 () () ()299
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GLFOHHex Jam NutSteelCadmium/Yellow3/8-24an315-6r b18.2.2 () () ()365
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GLFOHHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24nut 304ss AN316C6R b18.2.2 () () ()165
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GLFOHHex Jam NutSteelPlain3/8-24ms35691-21 b18.2.2 () () ()2
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GLFOHHex Jam NutGrade 2Zinc/Clear3/8-163/8-16 jam nut-grade 2-low carbon-zinc-cr3 b18.2.2 () () ()50
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GLFOHHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 fin hex jam nut 18-8 s/s b18.2.2 () () ()405
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GLFOHHex Jam Nut316, 317, A4 StainlessPlain3/8-163/8-16 fin hex jam nut 316 s/s b18.2.2 () () ()2010
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GLFOHHex Jam NutSteelZinc/Clear3/8-163/8-16 fin hex jam nut stl zc b18.2.2 () () ()17495
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GLFOHHex Jam NutSteelZinc/Yellow3/8-163/8-16 fin hex jam nut stl zy b18.2.2 () () ()7073
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GLFOHHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-243/8-24 fin hex jam nut 18-8 s/s b18.2.2 () () ()1457
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GLFOHHex Jam NutSteelZinc/Clear3/8-243/8-24 fin hex jam nut stl zc b18.2.2 () () ()1752
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GLFOHHex Jam NutBrassPlain3/8-243/8-24 fin hex jam nut brs b18.2.2 () () ()1050
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Irwin IndOntHex Jam NutSteelCopper3/8-163/8-16 unc fin hex jam nut copper plated b18.2.2600
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Irwin IndOntHex Jam Nut316, 317, A4 StainlessPlain3/8-163/8-16 hex jam nut 316 stainless steel b18.2.2400
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ASMCILHex Jam NutGrade 8Zinc/Yellow3/8-243/8-24 fine gr8 hex jam nut alloy yz (50/bag) b18.2.2170
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AbabaCAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 fin jam h/n s/s b18.2.2200
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AbabaCAHex Jam NutSteelZinc/Clear3/8-163/8-16 fin jam h/n stl znc b18.2.2200
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AbabaCAHex Jam NutSteelZinc/Clear3/8-243/8-24 fin jam h/n stl znc b18.2.2400
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AbabaCAHex Jam NutSteelZinc/Clear3/8-243/8-24 l.h. jam nut stl znc b18.2.250
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Wink FastVAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-1618.8 (a2) 18-8 304 steel hex jam nut 3/8-16 dimensionally per asme b18.2.23989
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JET FITTINGCAHex Jam NutSteelPlain3/8-163/8-16 fin hex jam nut stl zi 330090 b18.2.24468
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StandardMAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-243/8-24 finish jam nut 18-8 stainless steel b18.2.215000
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StandardMAHex Jam Nut316, 317, A4 StainlessPlain3/8-163/8-16 finish jam nut 316 stainless steel b18.2.220140
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StandardMAHex Jam NutSilicon BronzePlain3/8-163/8-16 finish jam nut silicon bronze b18.2.25150
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StandardMAHex Jam NutBrassPlain3/8-163/8-16 finish jam nut brass b18.2.28125
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QFCTXHex Jam NutGrade 8Zinc/Yellow3/8-163/8-16 hex jam nut grade 8 yellow zinc b18.2.23000
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QFCTXHex Jam NutGrade 5Zinc/Clear3/8-243/8-24 hex jam nut grade 5 zinc b18.2.28576
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QFCTXHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 fin hex jam nut 18-8 b18.2.2107
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QFCTXHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 fin hex jam nut 18-8 b18.2.2575
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QFCTXHex Jam NutSteelZinc/Clear3/8-163/8-16 fin hex jam nut zinc b18.2.25100
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QFCTXHex Jam NutSteelZinc/Clear3/8-163/8-16 fin hex jam nut zinc b18.2.2100
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QFCTXHex Jam NutSteelZinc/Clear3/8-243/8-24 fin hex jam nut zinc b18.2.22975
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QFCTXHex Jam NutSteelZinc/Clear3/8-243/8-24 fin hex jam nut l.h. zinc b18.2.248
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B & K FASTPAHex Jam NutSteelPlain3/8-163/8-16 hex jam nuts plain b18.2.2461
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B & K FASTPAHex Jam NutSteelZinc/Yellow3/8-163/8-16 hex jam nuts zinc yellow b18.2.24142
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Marine FastenersFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 hex jam nut ss 100 per box b18.2.2163
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Marine FastenersFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-243/8-24 hex jam nut 18-8 ss 100 per small bag 5 small bags per master pack-generic brand b18.2.27600
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General FMIHex Jam NutSteelZinc/Clear3/8-243/8-24 fin hex jam nut stl zn b18.2.22895
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General FMIHex Jam NutSilicon BronzePlain3/8-163/8-16 hex jam nut silicon bronze b18.2.21854
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General FMIHex Jam NutSteelZinc/Clear3/8-163/8-16 fin hex jam nut stl zn b18.2.2188
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OSSCORIHex Jam NutSteelZinc/Yellow3/8-243/8-24 l.h. hex jam nut yellow zinc b18.2.218
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OSSCORIHex Jam NutSteelPlain3/8-163/8-16 hex fin jam nut b18.2.234
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QFCTXHex Jam NutSteelPlain3/8-243/8-24 fin hex jam nut plain b18.2.21625
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QFCTXHex Jam NutSteelPlain3/8-163/8-16 fin hex jam nut plain b18.2.23145
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QFCTXHex Jam NutSteelZinc/Clear3/8-163/8-16 hex finish jam nut trivalent zinc b18.2.26000
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PerigeeMIHex Jam NutSteelBlack Oxide3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 hex jam nut b18.2.2155
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PerigeeMIHex Jam NutSteelBlack Oxide3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 hex jam nut b18.2.2124
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PerigeeMIHex Jam NutGrade 8Plain3/8-24 x 9/16 x 7/323/8-24 x 9/16 x 7/32 scwf fin hex jam nut 3b thread rolled thread b18.2.2123
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PerigeeMIHex Jam NutGrade 5Plain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 scwf fin hex jam nut b18.2.22117
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PerigeeMIHex Jam NutGrade 2Plain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut b18.2.210
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PerigeeMIHex Jam NutSteelZinc/Clear3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut lh thread b18.2.21350
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PerigeeMIHex Jam NutSteelZinc/Clear3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut lh thread b18.2.2156
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PerigeeMIHex Jam NutSteelZinc/Clear3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut lh thread b18.2.249
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PerigeeMIHex Jam NutGrade APhosphate3/8-24 x 9/16 x 21/643/8-24 x 9/16 x 21/64 fin full hex nut b18.2.2149
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PerigeeMIHex Jam NutGrade 5Plain3/8-243/8-24 x 9/16 x 21/64 hex nut b18.2.235
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PerigeeMIHex Jam NutGrade BCadmium/Yellow3/8-24 x 9/16 x 21/643/8-24 x 9/16 x 21/64 hex nut b18.2.2765
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PerigeeMIHex Jam NutSteelPlain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut b18.2.241
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PerigeeMIHex Jam NutSteelPlain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut b18.2.2169
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PerigeeMIHex Jam NutSteelPlain3/8-243/8-24 x 9/16 x 7/32 fin full slotted hex nut b18.2.21403
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PerigeeMIHex Jam NutSteelPlain3/8-16 x 9/16 x 7/323/8-16 x 9/16 x 7/32 fin hex jam nut b18.2.2388
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PerigeeMIHex Jam NutSteelPlain3/8-163/8-16 x 9/16 x 7/32 fin hex jam nut b18.2.21776
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PerigeeMIHex Jam NutGrade 8Plain3/8-243/8-24 x 9/16 x 7/32 fin hex jam nut b18.2.2163
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PerigeeMIHex Jam NutSteelPlain3/8-243/8-24 x 9/16 x 7/32 fin hex jam nut b18.2.237
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PerigeeMIHex Jam NutGrade BPhosphate3/8-243/8-24 x 9/16 x 7/32 fin hex jam nut b18.2.2399
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PerigeeMIHex Jam NutGrade BPhosphate3/8-243/8-24 x 9/16 x 7/32 fin hex jam nut b18.2.2405
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JET FITTINGCAHex Jam NutSteelZinc/Clear3/8-163/8-16 finished hex jam nut steel zinc b18.2.21361
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WurthOntHex Jam NutGrade 2Zinc/Clear3/8-16nut hx jam gr2 (zn) 3/8-16 b18.2.2500
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APIIAHex Jam NutGrade 5Zinc/Clear3/8-24hex jam nut zncl asme b18.2.21,700
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JET FITTINGCAHex Jam NutBrassPlain3/8-16nut hex 3/816 br jam b18.2.2380
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JET FITTINGCAHex Jam NutSteelPlain3/8-24nut hex 3/824 brbo jam b18.2.2179
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JET FITTINGCAHex Jam NutSteelZinc/Clear3/8-24nut hex 3/824 steel zinc plated thinjam sp b18.2.23000
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THRDFASTFLHex Jam NutGrade 5Zinc/Clear3/8-16gr5 hex jam nut b18.2.2860
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THRDFASTFLHex Jam NutSteelZinc/Clear3/8nf-24 hex jam nut b18.2.252
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THRDFASTFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8nf-24 18-8 ss hex jam nut b18.2.222
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THRDFASTFLHex Jam NutSteelPlain3/8nf-24 hex jam nut b18.2.220
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THRDFASTFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8nf-24 18-8 ss hex jam nut b18.2.21
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THRDFASTFLHex Jam NutSteelZinc/Clear3/8-16hex jam nut b18.2.2746
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THRDFASTFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-1618-8 ss hex jam nut b18.2.2100
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KBSTNHex Jam Nut316, 317, A4 StainlessPlain3/8-243/8-24 hex fin jam nut 316 s/s b18.2.2141
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THRDFASTALHex Jam NutSteelZinc/Clear3/8nf-24 left hand hex jam nut b18.2.250
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THRDFASTALHex Jam NutSteelZinc/Clear3/8nf-24 hex jam nut b18.2.2252
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THRDFASTOKHex Jam NutSteelZinc/Clear3/8nf-24 hex jam nut b18.2.220
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THRDFASTFLHex Jam NutSteelZinc/Clear3/8nf-24 hex jam nut b18.2.23
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THRDFASTALHex Jam Nut316, 317, A4 StainlessPlain3/8nf-24 t-316 ss hex jam nut b18.2.223
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THRDFASTALHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8nf-24 18-8 ss left hand hex jam nut b18.2.210
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THRDFASTALHex Jam NutSteelPlain3/8nf-24 hex jam nut b18.2.26480
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All SizeTXHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 jam nut s/s b18.2.2287
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All SizeTXHex Jam NutSteelPlain3/8-243/8-24 jam nut b18.2.22,478
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DavisILHex Jam NutSteelZinc/Clear3/8-163/8-16 hex jam nut-steel zinc b18.2.2500
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