3/8-16 Machine Screw Nut

Machine screw nuts are hex and square nuts available in much smaller sizes than regular finished hex nuts and are usually used with machine screws rather than machine bolts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Zoro Tools Inc.Machine Screw NutSteelZinc/Clear3/8-163/8-16 zinc plated finish carbon steel machine screw hex nuts 100 pk.
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Zoro Tools Inc.Machine Screw NutGrade AZinc/Clear3/8-163/8-16 steel zinc plated finish machine screw square nut 1250 pk.
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Buy Machine Screw Nut from one of our FCH Network Members
UNEEDANJMachine Screw NutSteelPlain3/8-16 x 5/8(af) m/s hex nut268
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UNEEDANJMachine Screw NutSteelPlain3/8-16 x 5/8(af) m/s hex nut2650
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UNEEDANJMachine Screw NutSteelPlain3/8-16 x 5/8square m/s nut500
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IRFNJMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16square machine screw nut 18-8 s/s15758
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IRFNJMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16square machine screw nut 18-8 s/s15758
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PENCOM CAOntMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 hex m/s nut ss100
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GlobalCAMachine Screw NutBrassNickel3/8-16machine screw nut plate plate150
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GlobalCAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16machine screw nut 18-8 ss2,957
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YANKEENHMachine Screw NutBrassPlain3/8-163/8-16 machine screw nut brass100
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YANKEENHMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16machine screw nut 18-8 304849
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ACFCAMachine Screw NutSteelZinc/Yellow3/8-163/8-16 hex machine screw nut zinc ii700
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Cal FastenrsCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 hex machine screw nut trivalent zinc hex m/s nut500
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Cal FastenrsCAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex nut 18-8 304 dfars compliant ms51971-3 dfars compliant40
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Cal FastenrsCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 hex machine screw nut i see cr3770
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SJS ProdCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 m/s hex nut zp4966
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SJS ProdCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 m/s hex nut st zp rohs
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SJS ProdCAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 hex machine screw nut ss tumble7
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VertexDILMachine Screw NutBrassPlain3/8-163/8-16 nc hex machinescr nut brass14714
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VertexDILMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 nc hex machine scr nut 18-8 st/st13415
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NutsBoltsNEMachine Screw NutSteelPlain3/8-16ms51967-8 3/8-16 hex nut
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AmericanNYMachine Screw NutSteelCadmium3/8-16 x 5/8 x 5/163/8-16 x 5/8 x 5/16 hex m/s nut cad pl64
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ZAL INDUSCAMachine Screw NutBrassPlain3/8-163/8-16 machine screw nut brass400
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ACCURATEILMachine Screw NutSteelZinc/Clear3/8-16square ms nut880
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut7
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut3109
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut3382
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut2965
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut150
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 hex m/s nut18886
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CenturyFLMachine Screw NutSteelPlain3/8-163/8-16 square m/s nut600
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CenturyFLMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16ms35649-2384365
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CenturyFLMachine Screw NutSteelPlain3/8-16ms35649-2382876
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CenturyFLMachine Screw NutSteelPlain3/8-16ms51967-814,158
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CenturyFLMachine Screw NutSteelPlain3/8-16ms51967-9130
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CenturyFLMachine Screw NutSteelPlain3/8-16 x 9/16 x 21/64ms51969-31
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CenturyFLMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16ms51971-342
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CenturyFLMachine Screw NutSteelPlain3/8-16ms51922-178
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ASMCILMachine Screw NutBrassPlain3/8-16coarse hex machine screw nut brs25
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ASMCILMachine Screw NutSteelZinc/Clear3/8-16coarse square machine screw nut low carb zp1,145
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ASMCILMachine Screw NutSteelZinc/Clear3/8-16 x 5/8 x 1/4coarse hex machine screw nut low carb zp1,022
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AbabaCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 m/s nut stl znc b18.2.2 b18.6.31211
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JacksonMSMachine Screw NutSteelZinc/Yellow3/8-16ncmachine screw nut1775
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PerigeeMIMachine Screw NutSteelZinc/Clear3/8-16 x 9/16 x 21/64hex machine screw nut b18.2.2 b18.6.388
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 5/8 x 5/32machine screw nut b18.2.2 b18.6.32447
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PerigeeMIMachine Screw NutSteelCadmium3/8-16 x 5/8 x 5/16special hex machine screw nut b18.2.2 b18.6.3240
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PerigeeMIMachine Screw NutGrade 7Plain3/8-16 x 9/16 x 21/64fin full hex nut ms16286-3 b18.2.2 b18.6.3191
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4hex machine screw nut ms35649-2384b b18.2.2 b18.6.31084
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PerigeeMIMachine Screw NutBrassPlain3/8-16hex machine screw nut ms35649-2385b b18.2.2 b18.6.3351
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PerigeeMIMachine Screw NutSteelPlain3/8-16hex machine screw nut ms35649-2385s b18.2.2 b18.6.3610
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PerigeeMIMachine Screw NutGrade BCadmium3/8-16 x 9/16 x 21/64fin full hex nut ms45905s5 b18.2.2 b18.6.3573
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PerigeeMIMachine Screw NutNylonPlain3/8-16 x 9/16 x 21/64 nylonfin full hex nut ms51858-10 b18.2.2 b18.6.3276
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 9/16 x 21/64fin full hex nut ms51969-3 b18.2.2 b18.6.3221
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4hex machine screw nut b18.2.2 b18.6.3293
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4hex machine screw nut b18.2.2 b18.6.31402
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PerigeeMIMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4hex machine screw nut ms35649-2384b b18.2.2 b18.6.31179
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JET FITTINGCAMachine Screw NutSteelZinc/Clear3/8-163/8-16 hex machine screw nut steel zinc b18.2.2 b18.6.335
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QFCTXMachine Screw NutSteelZinc/Clear3/8-163/8-16 machine screw nut trivalent clear b18.2.2 b18.6.38,000
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BrikksenFLMachine Screw Nut316, 317, A4 StainlessPlain3/8-163/8-16 square m/s nuts 316 ss b18.2.2 b18.6.34900
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ACFCAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 s/s hex m/s nut467
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Irwin IndOntMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 hex machine screw nut 18.8 stainless steel b18.2.2 b18.6.37608
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CertifiedILMachine Screw NutBrassPlain3/8-163/8-16 brass hex machine screw nut brass b18.2.2 b18.6.330
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RCFastAZMachine Screw NutBrassPlain3/8-16hex machine screw nutinquire
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RCFastAZMachine Screw NutSteelPlain3/8-163/8-16 machine sc nut cad (5/8x1/4) MS35649-2382inquire
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RCFastAZMachine Screw NutSteelZinc/Clear3/8-16square machine screw nut stl cr+3inquire
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RCFastAZMachine Screw NutSteelPlain3/8-16hex machine screw nut stl (5/8x1/4)inquire
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RCFastAZMachine Screw NutSteelZinc/Clear3/8-16hex machine screw nut stl cr+3 (5/8x1/4)inquire
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AIHAZMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 5/8 x 1/4 hex m/s nut s/s 304ss MS35649-238430
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ASFCORPMIMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 hx mach scw nut ss pkg72
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BAYFASTCOFLMachine Screw NutBrassPlain3/8-16hex nut brass500
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OlanderCAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 machine screw hex nut sst239
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ASMCILMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4coarse hex machine screw nut low carb50
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OBRIENOHMachine Screw NutSteelZinc/Clear3/8-16sq nut mach scr pattern2200
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WSBKYMachine Screw NutGrade 2Plain3/8-16nut hex ms gr2 (pl) 3/8-16 b18.2.2 b18.6.366,000
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LibertyILMachine Screw NutSteelPlain3/8-163/8-16 flange nut self locking 0002/0003 cad & ms51988-7 0002/0003 cad & 0002/0003 cad & yellow160
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LibertyILMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16square m/s nut 18-8 s/s stainless640
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LibertyILMachine Screw NutSteelZinc/Clear3/8-16square machine screw nut nut4,390
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LibertyILMachine Screw NutSteelNickel3/8-16hex machine screw nut plate plate3,550
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LibertyILMachine Screw NutSteelZinc/Clear3/8-16hex machine screw nut rohs2,200
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LibertyILMachine Screw NutSteelNickel3/8-16 x 5/8hex machine screw nut plate nut plate2,500
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LibertyILMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex machine screw nut 18-8 s/s35
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ISSCOMOMachine Screw NutBrassPlain3/8-16hex machine screw nut 3/8-16 .625-.607 waf x .257-.239thk6000
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GUIDONNJMachine Screw NutSteelPlain3/8-16800
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SASCOORMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16machine screw nut 18-8 sst m/s nut s m/s nut s173
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AFIFLMachine Screw NutSteelZinc/Yellow3/8-163/8-16 hex ms nut st zd2158
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AFIFLMachine Screw NutSteelPlain3/8-163/8-16 hex ms nut st cd297
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AFIFLMachine Screw NutSteelZinc/Clear3/8-163/8-16 hex ms nut st zn rohs134
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XL ScrewGAMachine Screw NutSteelPlain3/8-16 x 5/8 x 1/4hex ms nuts dc-dc3,000
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XL ScrewGAMachine Screw NutSteelZinc/Clear3/8-16 x 5/8 x 1/4hex ms nuts dc-dc zp3,000
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MasFasCorpNVMachine Screw NutSteelZinc/Clear3/8-16hex machine screw nutinquire
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MasFasCorpNVMachine Screw NutSteelPlain3/8-16ms51967-9 nutinquire
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GLFOHMachine Screw NutSteelPlain3/8-163/8-16 (5/8x1/4) hex m/s nut cad 11 MS35649-238292
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GLFOHMachine Screw NutBrassPlain3/8-16hex m/s nut brs nut287
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Kanebridge ILMachine Screw NutSteelBlack Oxide3/8-163/8-16x5/8x1/4 standard pattern hex machine screw nut black oxide50,000
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Kanebridge ILMachine Screw NutSteelCadmium3/8-163/8-16 , military hex machine screw nuts cadmium ms35649-238225,000
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Kanebridge ILMachine Screw NutSteelZinc/Clear3/8-163/8-16x5/8x1/4 coarse thread standard pattern hex machine screw nut zinc50,000
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Kanebridge ILMachine Screw NutSteelZinc/Clear3/8-163/8-16 square machine screw nut zinc25,000
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Kanebridge ILMachine Screw NutSteelZinc/Yellow3/8-163/8-16x5/8x1/4 hex machine screw nut zinc yellow50,000
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Kanebridge ILMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 square machine screw nut 18-8 stainless steel12.500
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KomarARMachine Screw NutSteelPlain3/8-16hex mach scr nut(5/8x1/4)3652
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IRFNCMachine Screw NutSteelPlain3/8-16machine screw hex nut clr stl cad mag12513
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BRIGHBESTILMachine Screw NutSteelPlain3/8-163/8-16 square machine screw nuts pl24000
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FMPMAMachine Screw Nut316, 317, A4 StainlessBlack Oxide3/8-16hex m/s nut (5/8 x .240) 316100
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FMPMAMachine Screw NutAluminumPlain3/8-16hex m/s nut (5/8 x 1/4)5100
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FMPMAMachine Screw NutBrassZinc/Clear3/8-16hex m/s nut (5/8 x 1/4)1500
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FMPMAMachine Screw NutSteelZinc/Clear3/8-16hex m/s nut (5/8 x 1/4)4500
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FMPMAMachine Screw NutBrassPlain3/8-16hex m/s nut (5/8 x 1/4)2400
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FMPMAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex m/s nut (5/8 x 1/4)7000
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MAINSOURCNHMachine Screw NutSteelPlain3/8-16machine screw nut stl z/clr392
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MAINSOURCNHMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16ms35649-2384 (m/s nut 3/8-16 ss) 304ss929
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Valley NuWAMachine Screw NutSteelZinc/Black3/8-16nc hex machine screw nut zb40
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TimberlineCOMachine Screw NutSteelZinc/Clear3/8-16hx st m/s nut zn 3/8-165994
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SBSMAMachine Screw Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex m/s nut s/s
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SpencerOHMachine Screw NutSteelZinc/Clear3/8-1619275
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SpencerOHMachine Screw NutSteelZinc/Clear3/8-1619275
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