#4 Hex Nuts

Finished Hex nuts are hexagonal, internally threaded fasteners, mated with bolts, studs, screws, and other externally threaded products. The purpose of a hex nut is to ensure that the bolt, etc., stays in place. Hex nuts of standard thickness are called finished hex nuts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
MESAFASTCAFinished Hex NutSteelZinc/Clear#4-40 .0544-40 (.054) pem nut NTPEM00421,000.0
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MESAFASTCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 small pattern hex nut (4-40x3/16x1/16) 18-8 stainless 18-8 stainless1,298.0
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MTPCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Aluminum zinc flake (Dacromet, Magnigard, Doerken)#4-40# 4-40 18-8 s.s hex m/s nuts a bb 100 fb 500 qk 25001,700
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GlobalCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40NAS671C42,620
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YANKEENHFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-484-48 hex finish nut stainless380
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TSFTXFinished Hex NutSteelPlain#4-40nut700
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TSFTXFinished Hex NutSteelFluoropolymer (Xylan, Fluorokote, Teflon)#4-40hex nut teflon 440237
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SWACOOHFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 small pattern 3/16 af 1/16 thk hex nut 18-81019
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Set ScrewILFinished Hex NutNylonPlain#4-40hex nutinquire
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QCSORFinished Hex NutSteelZinc/Clear#4-40 x 3/164-40 x 3/16 small pattern hex nut zinc19800
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QCSORFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 small pattern hex nut ss1318
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SJS ProdCAFinished Hex NutBrassPlain#4-40hexnut s/p brass 4-40 3/16-af rohs
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SJS ProdCAFinished Hex NutSteelZinc/Clear#4-40hexnut small pattern stl. zp 4-40
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SJS ProdCAFinished Hex NutBrassPlain#4-40hexnut brass 4-404809
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SJS ProdCAFinished Hex NutSteelZinc/Clear#4-40kepnut zp 4-40 rohs20246
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SJS ProdCAFinished Hex NutSteelZinc/Clear#4-40 x 3/164-40 x 3/16 hexnut st. zinc rohs52353
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SJS ProdCAFinished Hex NutSteelZinc/Black#4-40kepnut bz 4-404090
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SJS ProdCAFinished Hex NutSteelZinc/Clear#4-404-40 stopnut st zp rohs compliant2828
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SJS ProdCAFinished Hex NutSteelZinc/Clear#4-40kepnut zp 4-40127
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SJS ProdCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hexnut ss 4-40 small/patt rohs950
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SJS ProdCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40kepnut ss 4-401076
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VertexDILFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 sp 3/16x1/16 hexnut 18-8 stainless86895
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NutsBoltsNEFinished Hex NutBrassPlain#4-404-40 brass hex nut650
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AmericanNYFinished Hex NutAluminumPlain#4-40red nly insert hex l/n2800
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AmericanNYFinished Hex NutBrassNickel#4-40 x 1/4 x 3/324/40 x 1/4 x 3/32 hex brass nut nickel pl675
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AmericanNYFinished Hex NutBrassZinc/Clear#4-40 x 1/4 x 3/324/40 x 1/4 x 3/32 brass nut zinc plated5100
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AmericanNYFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404/40 hex nut small pattern stainless2900
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CenturyFLFinished Hex NutPlasticPlain#4-404-40 nylon acrorn nut black micro plastics 0500440cnb16800
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CenturyFLFinished Hex NutSteelPlain#4-40kaynar k7000-04-650
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CenturyFLFinished Hex NutSteelPlain#4-40nas671-414
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CenturyFLFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nas671c41,206,833
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CenturyFLFinished Hex NutSteelPlain#4-40nas679a04w2,639
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CenturyFLFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 finished hex nut sst1000
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CenturyFLFinished Hex NutSteelPlain#4-404-40 small pattern hex nut stl230
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Purchase MOFinished Hex NutNylonPlain#4-404-40 hex nut nylon natural3000
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LippinCAFinished Hex NutBrassPlain#4-40hex nut brass500
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LippinCAFinished Hex NutSteelPlain#4-40hex nut black3550
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LippinCAFinished Hex NutSteelZinc/Clear#4-40hex nut zinc plated64899
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LippinCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nut stainless 18-8700
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OlanderCAFinished Hex NutSteelPlain#4-404-40 nutplt100
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OlanderCAFinished Hex NutSteelFluoropolymer (Xylan, Fluorokote, Teflon)#4-404-40 hx nut teflon50
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OlanderCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 s/p hex nut ss dfars112
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OlanderCAFinished Hex NutSteelPlain#4-404-40 nutplt939
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OlanderCAFinished Hex NutSteelPlain#4-404-40 hx nut polycarb420
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TownCountryARFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40#4-40 hex nut stainless steel 18-8inquire
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FastWareSaskFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nut small pattern 18.8 ss3,000
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SRFALFinished Hex NutBrassPlain#4-40hex finish nut353
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EximS'poreFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 3/16 x 1/16nut hex narrow 18-8 stainless steel #4-40 unc 2b3/16 x 1/16 in right handmcmaster pn 90730a005 b18.2.2100
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EximS'poreFinished Hex NutBrassNickel#4-40nut hex brass nickel 4-40 small5.512 x 4.775 x 1.575 mm0.217 x 0.188 x 0.062 in b18.2.26050
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EximS'poreFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404.700 x 1.55nut hex narrow stainless steel 18-8 #4-404.700 x 1.55 mm0.185 x 0.061 in mfr p/n 90730a003 b18.2.25000
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EximS'poreFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Clear#4-40nut hex steel blue zn 4-40 small5.512 x 4.775 x 1.575 mm0.217 x 0.188 x 0.062 in b18.2.21137
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EximS'poreFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40nut hex s/s passivated #4-40 [small]5.512 x 4.775 x 1.575 mm [rohs]0.217 x 0.188 x 0.062 in b18.2.2266650
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EximS'poreFinished Hex NutSteelZinc/Yellow#4-40 5.613 x 4.800 x 1.575nut hex steel yellow zinc #4-40 5.613 x 4.800 x 1.575 mm0.221 x 0.189 x 0.067 in b18.2.295980
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EximS'poreFinished Hex NutSteelZinc/Clear#4-40nut hex steel blue trivalent 4-40 small5.613 x 4.800 x 1.575 mm0.221 x 0.189 x 0.062 in [rohs] b18.2.2217000
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EximS'poreFinished Hex NutSteelPlain#4-40 5.613 x 4.800 x 1.575nut hex steel plain #4-40 5.613 x 4.800 x 1.575 mm0.221 x 0.189 x 0.067 in b18.2.299500
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EximS'poreFinished Hex Nut316, 317, A4 StainlessPassivated#4-40nut hex 4-40 unc-2b pantherstainless steel 316 passivated b18.2.25690
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EximS'poreFinished Hex NutSteelZinc/Clear#4-40 7.341 x 6.350 x 2.362nut hex steel blue trivalent #4-40 unc7.341 x 6.350 x 2.362 mm0.289 x 0.250 x 0.093 in b18.2.26760
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EximS'poreFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40nut hex s/s passivated #4-40 small4.775 x 1.600 mm [rohs]0.188 x 0.063 in b18.2.216632
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EximS'poreFinished Hex NutBrassPlain#4-40 6.350 x 2.362nut hex brass natural #4-40 6.350 x 2.362 mm0.250 x 0.093 in b18.2.224319
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EximS'poreFinished Hex NutSteelZinc/Clear#4-40 7.341 x 6.350 x 2.362nut hex steel blue zn 4-40 7.341 x 6.350 x 2.362 mm0.289 x 0.250 x 0.093 in b18.2.2280
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EximS'poreFinished Hex NutSteelZinc/Clear#4-40nut hex steel blue zn #4-40 small5.613 x 4.800 x 1.575 mm0.221 x 0.189 x 0.062 in b18.2.2268
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EximS'poreFinished Hex NutSteelZinc/Clear#4-40 7.341 x 6.350 x 2.362nut hex steel blue trivalent #4-40 unc7.341 x 6.350 x 2.362 mm0.289 x 0.250 x 0.093 in [rohs] b18.2.278914
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EximS'poreFinished Hex NutSteelZinc/Yellow#4-40 7.341 x 6.350 x 2.362nut hex steel yellow trivalent #4-40 unc7.341 x 6.350 x 2.362 mm0.289 x 0.250 x 0.093 in b18.2.2603573
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Irwin IndOntFinished Hex NutSteelZinc/Clear#4-404-40 hex nut #2 pattern steel trivalent zinc clear b18.2.216332
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CertifiedILFinished Hex NutSteelZinc/Clear#4-404-40 (3/16 x 1/16)hex nut small ptrn zps. b18.2.23,030
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RCFastAZFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nut sm pattern 18-8 304 (3/16x1/16)3200
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RCFastAZFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48hex nut small pattern 18-8 304 (3/16x1/16)inquire
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RCFastAZFinished Hex NutSteelPlain#4-40hex nut small pattern stl electro-tin (3/16x1/16)inquire
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RCFastAZFinished Hex NutSteelZinc/Yellow#4-40hex nut small pattern stl rohs(3/16x1/16)1500
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AIHAZFinished Hex NutBrassPlain#4-40 x 3/16af small pat hex nut500
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AIHAZFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nut 4-40-3b s/s pass 304ss NAS671C44831
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AIHAZFinished Hex NutSteelPlain#4-404-40 3/16x1/16 hex/nut cad ii NAS671-4447
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AIHAZFinished Hex NutSteelZinc/Clear#4-40special hex nut 3/16x3/32449114
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AIHAZFinished Hex NutSteelZinc/Clear#4-40special hex nut 3/16x3/32449114
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StandardMAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 p-m nut 18-8 stainless steel b18.2.2inquire
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StandardMAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 small pat nut 18-8 stainless steel b18.2.2inquire
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OlanderCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex nut sst500
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ASFCORPMIFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 fin hx nut ss pkg100
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OlanderCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 small pattern hex nut sst2000
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OlanderCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex nut sst rohs ni46
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OlanderCAFinished Hex NutSteelPlain#4-404-40 hx nut ti73
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OlanderCAFinished Hex NutSteelZinc/Black#4-404-40 sp hex nut blk zn stl non-rohs240
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HBBOLTCAFinished Hex NutSteelZinc/Clear#4-48fin hex nuts400
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HBBOLTCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40flex nuts 18-83
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HBBOLTCAFinished Hex NutSteelZinc/Clear#4-40hex nut []7,200
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HBBOLTCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nut [304 ss]2,092
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HBBOLTCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48hex nut 18-8 ss335
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HBBOLTCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 3/164-40 (3/16af)hex nut 18-8 sm pat2,000
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OBRIENOHFinished Hex NutSteelPlain#4-40nas671-4240,000
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THRDFASTMSFinished Hex NutRubber, Buna-N etc.Plain#4round base red-epdm flash b18.2.230
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LibertyILFinished Hex NutSteelPlain#4-40feo440-ef pem nut 4/404,400
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LibertyILFinished Hex NutBrassPlain#4-40 x 5/32 x 7/64hex nut brass600
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LibertyILFinished Hex NutSteelPlain#4-40 x 3/16 x 1/16hex nut plain48,800
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LibertyILFinished Hex NutBrassNickel#4-40 x 1/4 x 3/32hex nut plate plate2,950
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LibertyILFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16 x 1/16hex nut 18-8 s/s 18-8 s/s964
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LibertyILFinished Hex NutSteelNickel#4-40 x 7/32 x 3/32hex nut plate plate450
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LibertyILFinished Hex NutSteelCadmium/Yellow#4-40 x 1/4 x 3/32 0002/00034-40x1/4x3/32 hex nut 0002/0003 cad & 0002/0003 cad &800
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LibertyILFinished Hex NutSteelZinc/Clear#4-40 x 5/16 x 7/64hex nut plate plate5,000
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LibertyILFinished Hex NutBrassPlain#4-40 x 3/16 x 1/16hex nut brass900
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LibertyILFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40small pattern hex nut (3/16x1/16) 18-8 304 dfars compliant900
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LibertyILFinished Hex NutSteelNickel#4-48 x 1/4 x 3/32hex nut plate plate2,000
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LibertyILFinished Hex NutBrassNickel#4-40 x 3/16 x 1/16hex nut plate plate4,900
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LibertyILFinished Hex NutSteelPlain#4-40 x 3/16 x 1/16hex nut cad cad9,500
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LibertyILFinished Hex NutBrassPlain#4-40 x 3/16 x 1/16double chamfered hex nut brite dip clear chromate1,600
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LibertyILFinished Hex NutBrassNickel#4-36hex nut plate plate750
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LibertyILFinished Hex NutSteelNickel#4-40stop nut aliminum plate2,600
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CenturyFLFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40honeywell nas671c427
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MFSKSFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nut192
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MFSKSFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48hex nut492
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TrifastTXFinished Hex NutSteelNickel#4-404-40 hex nut steel bright nickel900
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TrifastTXFinished Hex NutBrassPlain#4-404-40 small pattern hex nut brass plain self finish5000
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TrifastTXFinished Hex NutSteelZinc/Clear#4-40 3/164-40 hex nut 3/16 a/f x 3/32 thk steel rohs zinc clr baked25688
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TrifastTXFinished Hex NutSteelZinc/Clear#4-404-40 hex nut steel rohs zinc clear39000
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TrifastTXFinished Hex NutSteelZinc/Clear#4-404-40 hex nut steel rohs zinc clear106300
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TrifastTXFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex nut stainless plain self finish119416
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MFSKSFinished Hex NutSteelZinc/Yellow#4-48dichromate hex nut365
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MFSKSFinished Hex NutSteelNickel#4-40hex nut300
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MFSKSFinished Hex NutSteelZinc/Yellow#4-40dichromate hex nut8144
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MFSKSFinished Hex NutSteelZinc/Clear#4-40hex nut32311
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MFSKSFinished Hex NutBrassPlain#4-48hex nut1027
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MFSKSFinished Hex NutBrassPlain#4-40hex nut254
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MFSKSFinished Hex NutSteelZinc/Clear#4-48hex nut9093
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AFIFLFinished Hex NutSteelZinc/Yellow#4-404-40 small pattern hex nut st zd rohs8116
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AFIFLFinished Hex NutSteelZinc/Clear#4-404-40 small pattern hex nut st zn rohs9245
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AFIFLFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 small pattern hex nut ss15553
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AFIFLFinished Hex NutBrassPlain#4-404-40 small pattern hex nut brass104
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AFIFLFinished Hex NutSteelZinc/Clear#4-404-40 small pattern hex nut st zn20000
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AFIFLFinished Hex NutSteelZinc/Yellow#4-404-40 small pattern hex nut st zd3413
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CONTAERONJFinished Hex NutBrassPlain#4-40min hex140000
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CONTAERONJFinished Hex NutAluminumAnodized#4-40min hex alum clr alodine12,170
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CONTAERONJFinished Hex NutAluminumPlain#4-40min hex alum82352
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CONTAERONJFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40min hex 18-8 304197623
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CONTAERONJFinished Hex NutBrassNickel#4-40min hex975
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CONTAERONJFinished Hex NutBrassCadmium#4-40min hex cad11,461
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CONTAERONJFinished Hex NutBrassNickel#4-48special e9605-48 /24028
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CONTAERONJFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium#4-40min hex ss all-metal cad/moly578
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CONTAERONJFinished Hex NutBrassPlain#4-40min hex cd/ylw51813
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CONTAERONJFinished Hex NutAluminumChromate Conversion (Iridite, Alodine)#4-40min hex alum trivlent clr alodine3048
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CONTAERONJFinished Hex NutAluminumChromate Conversion (Iridite, Alodine)#4-40min hex alum ylw alodine48153
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CONTAERONJFinished Hex NutAluminumPlain#4-40std alum hex nut6046
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CONTAERONJFinished Hex NutSteelZinc/Yellow#4-40std hex nut20000
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CONTAERONJFinished Hex NutBrassPlain#4-40min hex .0002 hex nut85602
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CONTAERONJFinished Hex NutSteelZinc/Clear#4-40std triv 100 per hex nut9681
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CONTAERONJFinished Hex NutBrassZinc/Yellow#4-40min hex brass tri z&y hex nut1161
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GLFOHFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 (3/16x1/16) ss hex/nut mil-spec 304ss mil-spec NAS671-C412
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GLFOHFinished Hex NutSteelZinc/Clear#4-40fin hex nut 3/16 afx3/32 thk zc nut2500
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SJS ProdCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hexnut ss 4-40 small/patt rohs10,171
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Kanebridge ILFinished Hex NutNylonPlain#4-404-40 hex nut nylon62.500
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Kanebridge ILFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-404-40 nyl insrt thn pat nut 188 stain stl bl ox50,000
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LibertyILFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nas 671c4 hex nut 304ss NAS671C41,039
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AccutiteCAFinished Hex NutSteelCadmium#4-40 1/4 x 3/324-40 hex nut (1/4x3/32) stl. cad with clear chromate type-2 cl.3 qq-p-416f200
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AccutiteCAFinished Hex NutSteelZinc/Clear#4-40 x 3/16af hex nut i nas671-4-zi rohs compliant10000
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AccutiteCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nas671-c4 dfars compliant unjc 3b passivation c of c req76,400
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AccutiteCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex nut 3/16 af x 1/16 thk s/s commercial equal to nas671-c410000
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AccutiteCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex nut 3/16 af x 1/16 thk s/s commercial equal to nas671-c430,269
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AccutiteCAFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40small pattern hex nut 18-8 3041,200
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TimberlineCOFinished Hex NutNylonPlain#4-40nyl hx nut pkg 4-401007
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TimberlineCOFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hx nut ss 4-401093
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TimberlineCOFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hx nut 18-8 ss 4-40500
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Alma BoltMIFinished Hex NutBrassPlain#4-36special pitch hex nut2700
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Alma BoltMIFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48SAE (1/4 af 3/32 tk) st. st. hex nut500
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Alma BoltMIFinished Hex Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40small pattern st. st. hex nut900
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Alma BoltMIFinished Hex NutBrassPlain#4-40hex nut3752
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Alma BoltMIFinished Hex NutBrassPlain#4-40hex nut1634
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LightningLAFinished Hex NutBrassPlain#4-40hex nut5650
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CFIILFinished Hex NutSteelZinc/Clear#4-40hex nuts10,400
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CFIILFinished Hex NutSteelZinc/Clear#4-40hex nuts10,400
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CFIILFinished Hex NutSteelZinc/Clear#4-40hex nuts10,400
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CFIILFinished Hex NutSteelZinc/Clear#4-40hex nuts10,400
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SeattleNBWAFinished Hex NutBrassPlain#4-40fin hex nut2,000
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ACCURATEILFinished Hex NutBrassNickel#4-40 x 3/16 x 1/16hex nuts82,000
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ACCURATEILFinished Hex NutSteelNickel#4-40 x 1/4 x 3/32s20,000
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