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9/16 USS Flat Washers

USS Flat Washers were among the first known commercial flat washers in the U.S.A. They are characterized as having a loose fit, and have a larger outside diameter than SAE Flat washers. The USS designation was derived from the name “Unified Standard Series.” At the time, coarse threaded bolts were called USS bolts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
KomarILUSS Flat WasherSteelZinc/Clear9/16 x 5/8 x 1 1/29/16 uss flat 5/8x1 1/2x7/64 zinc450
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KomarILUSS Flat WasherSteelZinc/Clear9/16 x 5/8 x 1 1/29/16 uss flat 5/8x1 1/2x7/64 zinc
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KomarMOUSS Flat WasherSteelZinc/Clear1/2 uss flat washer 9/16x1 3/8x7/64 zinc92
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YANKEENHUSS Flat WasherSteelZinc/Clear9/16 x 1 15/329/16 x 1 15/32 uss flat washer steel zinc plated1090
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JacksonMSUSS Flat WasherGrade 8Zinc/Yellow9/169/16 USS gr 8 flat 5/8 idx1 1/2 od3164.2
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JacksonMSUSS Flat WasherSteelPlain9/169/16 USS flat 5/8 idx1 1/2 od 22/lb1115
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JacksonMSUSS Flat WasherSteelZinc/Clear9/169/16 USS flat 5/8 idx1 1/2 od 12 guage 22/lb9011
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/16 x 59/16 uss f/w 5/pkg hrd stl yel znc (1-1/2 od) b18.22.14
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/16 x 59/16 uss f/w 5/pkg hrd stl yel znc (1-1/2 od) b18.22.13
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LippinCAUSS Flat WasherSteelZinc/Clear9/16-959/16 flat washer uss zp 5# (95)22
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AmericanNYUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat gr 8 zy600
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SIIINUSS Flat WasherSteelZinc/Clear9/169/16 zinc uss flat washer)840
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SIIINUSS Flat WasherGrade 8Zinc/Yellow9/169/16 grd8 uss yz flat washer)350
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/169/16 uss f/w hrd stl yel znc (1-1/2 od) b18.22.1783
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/169/16 uss f/w hrd stl yel znc (1-1/2 od) b18.22.1125
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/169/16 uss f/w extra thick hrd stl yel znc (1-1/2 od) b18.22.1715
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/169/16 uss f/w extra thick hrd stl yel znc (1-1/2 od) b18.22.160
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AbabaCAUSS Flat WasherSteelZinc/Clear9/16-1 1/29/16 uss f/w stl znc (1-1/2 od) b18.22.11284
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AbabaCAUSS Flat WasherSteelZinc/Clear9/16-1 1/29/16 uss f/w stl znc (1-1/2 od) b18.22.1350
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AbabaCAUSS Flat WasherSteelZinc/Clear9/16-1 1/29/16 uss f/w stl znc (1-1/2 od) b18.22.1250
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ACCURATEILUSS Flat WasherSteelPlain9/16flat-uss2300
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YANKEENHUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat washer grade 8 zinc/yellow90
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RePneu ToMIUSS Flat WasherSteelZinc/Yellow9/169/16 uss flat s med. carbon thru-hardened zinc-yellow cr+6 (import)100
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WeaverWAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/169/16 uss flat s 18-8 ss507
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ExpressCAUSS Flat WasherSteelZinc/Clear9/169/16 uss flat zinc820
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AmericanNYUSS Flat WasherSteelZinc/Clear9/16USS flat zp15
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AmericanNYUSS Flat WasherSteelPlain9/16USS flat7
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss thru-hard flat washers gr 8 z yellow b18.22.1246.39
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B & K FASTPAUSS Flat WasherSteelZinc/Clear9/169/16 uss flat washers zinc b18.22.1122.52
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QFCTXUSS Flat WasherSteelZinc/Yellow9/169/16 yzp uss hard b18.22.1130
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TownCountryARUSS Flat WasherSteelZinc/Clear9/16flat uss400
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METRO INDOHUSS Flat WasherSteelZinc/Clear9/16USS flat425
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METRO INDOHUSS Flat WasherGrade 8Zinc/Yellow9/16USS flat gr 8 /y53
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TSFTXUSS Flat WasherSteelZinc/Clear9/16-50flat washer uss zinc plated 9/16 (50#bx)842
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TSFTXUSS Flat WasherSteelZinc/Yellow9/169/16 uss flat washers medium carbon thru-hardened zinc-yellow (import)697
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ACCURATEILUSS Flat WasherSteelZinc/Yellow9/16flat USS thru-hard332
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ACCURATEILUSS Flat WasherSteelZinc/Clear9/16flat - uss209
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Kanebridge ILUSS Flat WasherSteelZinc/Clear9/169/16 flat washer-uss usa zinc27.500
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SunPackFLUSS Flat WasherSteelGalvanized9/169/16 uss flat hdg688
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SunPackFLUSS Flat WasherSteelZinc/Clear9/169/16 uss flat zinc1,733
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SunPackFLUSS Flat WasherGrade 8Zinc/Yellow9/169/16 gr8 uss flat yellow zinc9
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HewesNYUSS Flat WasherSteelZinc/Clear9/16USS f/w pl1100 pc/50#300
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MESAFASTCAUSS Flat WasherSteelZinc/Clear9/16USS flat (22/ #)3.0
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MTPCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Yellow9/169/16 uss extra thick st/yzn hrc 38-45 flat washer .625 x 1.50 x .156-.188stock
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MTPCAUSS Flat WasherGrade 8Zinc/Yellow9/16-89/16 uss-g8 yzn hardened flat washersstock
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WurthOntUSS Flat WasherSteelZinc/Clear9/16wsh flt uss a w st (zn) 9/16 b18.22.150
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Cal FastenrsCAUSS Flat WasherSteelZinc/Clear9/169/16 uss f/w-trivalent zinc uss f/w rohs compliant500
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Purchase MOUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat washer gr. 8 zinc/yel100
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CenturyFLUSS Flat WasherSteelPlain9/169/16 uss flat washer (STEEL ZINC PLT) (STEEL ZINC PLT) 808
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Wurth AdaMNUSS Flat WasherSteelZinc/Clear9/16washer flat uss a w steel (zt) 9/161,435
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Wurth AdaMNUSS Flat WasherSteelZinc/Clear9/16washer flat uss a w steel (zn) 9/16100
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GLFOHUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat gr 8 stl zy b18.22.1 () () ()6317
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GLFOHUSS Flat WasherSteelZinc/Clear9/169/16 uss flat stl zc b18.22.1 () () ()8783
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THRDFASTFLUSS Flat WasherSteelGalvanized9/16USS f/w hdg b18.22.1792
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THRDFASTFLUSS Flat WasherSteelZinc/Clear9/16USS f/w b18.22.1550
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THRDFASTFLUSS Flat WasherGrade 8Plain9/16gr 8 USS f/w b18.22.149
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THRDFASTFLUSS Flat WasherSteelGalvanized9/16USS f/w hdg b18.22.1310
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NAPPCOTXUSS Flat WasherSteelZinc/Yellow9/169/16 flatwasher uss thrihardenedsteel zy727
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BAYFASTCOFLUSS Flat WasherSteelZinc/Clear9/16uss flat133
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THRDFASTOKUSS Flat WasherSteelZinc/Clear9/16USS f/w b18.22.1720
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THRDFASTOKUSS Flat WasherGrade 8Zinc/Yellow9/169/16 gr 8 USS f/w z&y b18.22.120
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AmericanNYUSS Flat WasherSteelZinc/Clear9/16USS flat zp7.72
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SunPackFLUSS Flat WasherGrade 8Zinc/Yellow9/169/16 gr8 uss flat yellow zinc336
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ManscoMIUSS Flat WasherSteelPlain9/16-.6209/16 uss f/w pln-.620/.640 idx1.462/1.499 odx.086/.132 thk12345
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LippinCAUSS Flat WasherSteelZinc/Clear9/169/16 flat washer uss zinc35700
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SISAZUSS Flat WasherSteelPlain9/16USS hardened flat225
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SISAZUSS Flat WasherSteelZinc/Clear9/16USS flat95
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BoltCraftNEUSS Flat WasherSteelZinc/Clear9/169/16 uss flat washer zinc 1140/ctn-100/pkginquire
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EndriesWIUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat gr 8 zn/ye80
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NutsBoltsNEUSS Flat WasherSteelZinc/Yellow9/169/16 uss thru-hard flat washer zy1680
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NutsBoltsNEUSS Flat WasherSteelZinc/Clear9/169/16 uss flat washer zp1685
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Cal FastenrsCAUSS Flat WasherSteelZinc/Clear9/16USS f/w USS f/w see 56nwusz/cr376
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Cal FastenrsCAUSS Flat WasherSteelPlain9/16USS f/w USS f/w880
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Future FastenerTXUSS Flat WasherSteelZinc/Clear9/169/16 uss flat washer plt142
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Future FastenerTXUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss g8 flat washer y/z190
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DeltaTXUSS Flat WasherSteelPlain9/16flat washer uss plain 9/16 (1 1/2 OD, ALSO SEE 7238)1309
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DeltaTXUSS Flat WasherSteelZinc/Clear9/16flat washer uss zinc 9/16 (1 1/2 OD)1504
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DeltaTXUSS Flat WasherSteelGalvanized9/16flat washer uss hdg 9/16 (1 1/2 OD)53
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DeltaTXUSS Flat WasherGrade 8Plain9/16flat washer uss gr 8 plain 9/16 (1 1/2 OD)599
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DeltaTXUSS Flat WasherGrade 8Cadmium9/16flat washer uss gr 8 cad 9/16 (1 1/2 OD)96
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THRDFASTALUSS Flat WasherSteelZinc/Clear9/16USS f/w b18.22.1420
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CNBILUSS Flat WasherGrade 8Plain9/16USS flat856
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WDMBIAUSS Flat WasherSteelPlain9/16flat uss a w st (pl) 9/16585
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QFCTXUSS Flat WasherSteelPlain9/169/16 uss flat washer plain each .625x1.469x.109 b18.22.1630
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WSBKYUSS Flat WasherSteelPlain9/16q/washer flat uss a w all (mzyt) 9/16 b18.22.1920
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BHAMALUSS Flat WasherGrade 8Plain9/169/16 uss flat washer gr. 8 pln dom.791
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WurthINUSS Flat WasherGrade 2Plain9/169/16 uss f/w gr2 zf coating per 705100300 cps 5035/5039 pack 150 per poly bag6,725
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ASFCORPMIUSS Flat WasherSteelPlain9/169/16 uss flt wshr pkg68
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FastWareSaskUSS Flat WasherSteelZinc/Yellow9/16USS flat hardened220
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FastWareSaskUSS Flat WasherSteelZinc/Clear9/16USS flat362
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ASMCILUSS Flat WasherSteelZinc/Clear9/16flat USS pattern low carb zp2,549
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ASMCILUSS Flat WasherSteelGalvanized9/16flat USS pattern low carb hdg950
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ASMCILUSS Flat WasherGrade 8Plain9/16gr8 flat USS pattern med carb750
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ASMCILUSS Flat WasherSteelPlain9/16flat USS pattern low carb1,792
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Alma BoltMIUSS Flat WasherSteelPlain9/16USS flat630
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MAINSOURCNHUSS Flat WasherSteelPlain9/16USS flat stl z/clr50
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MTPCAUSS Flat WasherSteelZinc/Clear9/169/16 uss-stl zn flat washers2,943
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MTPCAUSS Flat WasherGrade 8Plain9/169/16 uss g8 pln flat washer1,129
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MTPCAUSS Flat WasherGrade 8Zinc/Yellow9/16-89/16 uss-g8 yzn hardened flat washersstock
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MTPCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Yellow9/169/16 uss extra thick st/yzn hrc 38-45 flat washer .625 x 1.50 x .156-.188stock
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Kanebridge ILUSS Flat WasherSteelZinc/Yellow9/169/16 uss thru-hardened washer zinc yellow10,000
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Kanebridge ILUSS Flat WasherSteelZinc/Yellow9/169/16 thick heavy duty thru-hardened uss washer zinc yellow made in usa23.750
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Kanebridge ILUSS Flat WasherSteelZinc/Clear9/169/16 uss flat washer zinc625,000
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LibertyILUSS Flat WasherSteelZinc/Clear9/16USS flat2,280
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LibertyILUSS Flat WasherSteelPlain9/16USS flat90
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LibertyILUSS Flat WasherSteelCadmium/Yellow9/16USS flat cad & cad &1,446
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LibertyILUSS Flat WasherSteelZinc/Yellow9/16USS flat & &1,099
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LibertyILUSS Flat WasherGrade 8Zinc/Yellow9/16USS flat & &620
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HBBOLTCAUSS Flat WasherSteelZinc/Clear9/16USS flat []1,027
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General FMIUSS Flat WasherSteelZinc/Clear9/169/16 uss fw zinc b18.22.1128
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XL ScrewGAUSS Flat WasherSteelPlain9/16uss flat s1,100
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XL ScrewGAUSS Flat WasherSteelZinc/Clear9/16uss flat s zp1,100
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MMFMIUSS Flat WasherSteelPlain9/169/16 hard uss flat washer zdy usa domestic b18.22.11410
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MMFMIUSS Flat WasherSteelZinc/Yellow9/169/16 hard uss flat washer zinc yellow usa domestic b18.22.11410
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MMFMIUSS Flat WasherSteelPlain9/169/16 hard uss flat washer zdy usa domestic b18.22.11410
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MMFMIUSS Flat WasherSteelZinc/Yellow9/169/16 hard uss flat washer zinc yellow usa domestic b18.22.11410
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NorthernMNUSS Flat WasherGrade 8Plain9/16hi-strength USS mil-carb for gr8 bolts420
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ASMCILUSS Flat WasherGrade 8Zinc/Yellow9/16gr8 flat USS pattern-usa med carb b18.22.1500
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Kanebridge ILUSS Flat WasherSteelPlain9/169/16 thru-hard uss washer plain11,000
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MESAFASTCAUSS Flat WasherSteelZinc/Clear9/16USS flat thru-hardened hardened300.0
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HayesCAUSS Flat WasherSteelGalvanized9/169/16 uss flat washer hdg1100
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BAYFASTCOFLUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss flat washer grade 8 zinc yellow7978
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MTPCAUSS Flat WasherGrade 8Zinc/Yellow9/16-89/16 uss-g8 yzn hardened flat washersstock
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MTPCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Yellow9/169/16 uss extra thick st/yzn hrc 38-45 flat washer .625 x 1.50 x .156-.188stock
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SWACOOHUSS Flat WasherSteelZinc/Clear9/169/16 uss f/w stl zinc1795
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SWACOOHUSS Flat WasherSteelZinc/Yellow9/169/16 uss flt wash stl thru-hard zy731
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Wurth IndD.F.USS Flat WasherSteelZinc/Clear9/169/16 uss flat washer zn bulk-
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SunPackFLUSS Flat WasherSteelZinc/Clear9/16USS flat1,754
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SunPackFLUSS Flat WasherSteelGalvanized9/16USS flat hdg688
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CentenniaCOUSS Flat WasherSteelPlain9/169/16 uss flat washer98
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Valley NuWAUSS Flat WasherGrade 9Zinc/Yellow9/16pfc-9 USS thick flat zy669
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LightningLAUSS Flat WasherGrade 8Zinc/Yellow9/16USS flat1794
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Raw ProduNJUSS Flat WasherSteelZinc/Clear9/16flat washers zinc uss 9/16889
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LightningLAUSS Flat WasherSteelZinc/Clear9/16astm f844 USS flat2495
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear9/169/16 uss f/w stl zinc 344007 b18.22.11935
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CentenniaCOUSS Flat WasherSteelZinc/Yellow9/169/16 uss flat washer pcs dom zn&y50
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SWACOOHUSS Flat WasherSteelPlain9/169/16 uss flt wash low stl pln740
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AFIFLUSS Flat WasherSteelZinc/Clear9/169/16 flat washer uss st zn () ()1040
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HodellOHUSS Flat WasherSteelPlain9/169/16 uss fl wash plain ()
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Raw ProduNJUSS Flat WasherSteelGalvanized9/16flat washers hdg uss 9/16499
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Valley NuWAUSS Flat WasherSteelGalvanized9/16-1 1/29/16 (1 1/2 od) USS cut hdg78
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow9/169/16 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.174600
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CentenniaCOUSS Flat WasherSteelZinc/Yellow9/169/16 uss thru-hard f/w dom zn&y50
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HodellOHUSS Flat WasherSteelZinc/Clear9/169/16 uss fl wash zinc318
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CIFILUSS Flat WasherSteelGalvanized9/169/16 flat uss hdg (1135) ()1135
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Valley NuWAUSS Flat WasherSteelZinc/Black9/16-1 1/29/16 (1 1/2 od) USS cut zb661.5
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WINAMNUSS Flat WasherSteelNon-Electrolytic Zinc & Aluminum Flakes + Matrix9/16wsh flt uss a w st zfsh 9/165932
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Valley NuWAUSS Flat WasherSteelGalvanized9/16-1 1/29/16 (1 1/2 od) USS cut hdg64.8
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Raw ProduNJUSS Flat WasherGrade 8Plain9/16flat washers grade 8 uss 9/1645
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THRDFASTMSUSS Flat WasherSteelPlain9/16USS f/w b18.22.162
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LightningLAUSS Flat WasherSteelPlain9/16astm f844 USS flat537
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Wurth IndINUSS Flat WasherAluminumElectrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)9/16wsh flt uss a w st zfsh 9/16 steel non-electrolytic zinc & aluminum flakes + matrix5932
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Wurth IndINUSS Flat WasherSteelZinc/Yellow9/16wsh flt uss a w st zy 9/16 steel zinc/yellow612
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CenturyNYUSS Flat WasherSteelZinc/Clear9/16 uss flat washer steel zinc plt808
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ASFCORPMIUSS Flat WasherSteelGalvanized9/169/16 uss flt wshr hdg pkg880
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Alma BoltMIUSS Flat WasherSteelPlain9/16USS pattern extra thick flat565
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THRDFASTOKUSS Flat WasherSteelPlain9/16USS f/w b18.22.188
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ArdenWIUSS Flat WasherSteelZinc/Clear9/169/16 fw uss zcinquire
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Raw ProduNJUSS Flat WasherGrade 8Plain9/16flat washers usa grade 8 uss 9/16653
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WINAMNUSS Flat WasherSteelZinc/Yellow9/16wsh flt uss a w st zy 9/16612
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Raw ProduNJUSS Flat WasherGrade 8Plain9/16flat washers uss grade 8 plain 9/16536
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General FMIUSS Flat WasherSteelZinc/Clear9/169/16 uss fw zn b18.22.142180
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