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USS Flat Washers , Zinc/Yellow (ASME B18. 22.1)

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 
BHAMALUSS Flat WasherGrade 8Zinc/Yellow1 1/8 x 81-1/8 uss flat washer gr 8 yel zn b18.22.1368
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Alma BoltMIUSS Flat WasherGrade 9Zinc/Yellow7/167/16 uss yellow zinc flat washer grade 9 b18.22.1300
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BHAMALUSS Flat WasherSteelZinc/Yellow7/167/16 uss flat washer yel zn b18.22.11197
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BHAMALUSS Flat WasherGrade 8Zinc/Yellow1 x 81 uss flat washer gr 8 yel zn b18.22.114
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BHAMALUSS Flat WasherGrade 8Zinc/Yellow1 1/41-1/4 uss flat dom. gr 8 yel zn b18.22.145
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BHAMALUSS Flat WasherGrade 8Zinc/Yellow7/87/8 uss flat washer gr 8 yel zn b18.22.1500
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow3/43/4 uss flat washer thru-hardened steel rc 38-45 .0002 zinc yellow b18.22.199000
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow1/21/2 uss flat washer thru-hardened steel rc 38-45 .0002 zinc yellow b18.22.1322000
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AbabaCAUSS Flat WasherSteelZinc/Yellow11 uss f/w hrd stl yel znc (2-1/2 od) b18.22.1163
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AbabaCAUSS Flat WasherSteelZinc/Yellow11 uss f/w extra thick hrd stl yellow zinc (2-1/2 od) b18.22.191
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AbabaCAUSS Flat WasherSteelZinc/Yellow1 1/41 1/4 uss f/w hrd stl yel znc (3 od) b18.22.13
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AbabaCAUSS Flat WasherSteelZinc/Yellow1 1/81 1/8 uss f/w hrd stl yel znc (2-3/4 od) b18.22.1130
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AbabaCAUSS Flat WasherSteelZinc/Yellow1 1/21 1/2 uss f/w hrd stl yel znc (3-1/2 od) b18.22.14
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AbabaCAUSS Flat WasherSteelZinc/Yellow1/41/4 uss f/w hrd stl yel znc (3/4 od) b18.22.15920
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AbabaCAUSS Flat WasherSteelZinc/Yellow1/4 x 251/4 uss f/w 25/pkg hrd stl yel znc (3/4 od) b18.22.19
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AbabaCAUSS Flat WasherSteelZinc/Yellow1/41/4 uss f/w extra thick hrd stl yel znc (3/4 od) b18.22.14250
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/165/16 uss f/w hrd stl yel znc (7/8 od) b18.22.11000
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/165/16 uss f/w hrd stl yel znc (7/8 od) b18.22.12
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/165/16 uss f/w extra thick hrd stl yel znc (7/8 od) b18.22.12875
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AbabaCAUSS Flat WasherSteelZinc/Yellow3/83/8 uss f/w hrd stl yel znc (1 od) b18.22.12060
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AbabaCAUSS Flat WasherSteelZinc/Yellow3/8 x 253/8 uss f/w 25/pkg hrd stl yel znc (1 od) b18.22.18
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AbabaCAUSS Flat WasherSteelZinc/Yellow3/83/8 uss f/w trivalent hrd stl yel znc (1 od) b18.22.16807
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AbabaCAUSS Flat WasherSteelZinc/Yellow3/83/8 uss f/w extra thick hrd stl yel znc (1 od) b18.22.14562
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AbabaCAUSS Flat WasherSteelZinc/Yellow7/167/16 uss f/w hrd stl yel znc (1-1/4 od) b18.22.11050
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AbabaCAUSS Flat WasherSteelZinc/Yellow7/16 x 107/16 uss f/w 10/pkg hrd stl yel znc (1-1/4 od) b18.22.111
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AbabaCAUSS Flat WasherSteelZinc/Yellow7/167/16 uss f/w extra thick hrd stl yel znc (1-1/4 od) b18.22.1171
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AbabaCAUSS Flat WasherSteelZinc/Yellow1/21/2 uss f/w hrd stl yel znc (1-3/8 od) b18.22.1633
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AbabaCAUSS Flat WasherSteelZinc/Yellow1/2 x 101/2 uss f/w 10/pkg hrd stl yel znc (1-3/8 od) b18.22.17
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow3/83/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1284710
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow1 1/81-1/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.15885
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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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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow11 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.15980
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow1/41/4 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1224000
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow7/167/16 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1107540
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow5/85/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.197500
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow1 1/41-1/4 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.12475
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow7/87/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.133375
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow5/165/16 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1310000
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QFCTXUSS Flat WasherSteelZinc/Yellow1/41/4 uss flat zinc yellow b18.22.1111680
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QFCTXUSS Flat WasherSteelZinc/Yellow1/41/4 uss flat zinc yellow b18.22.140098
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QFCTXUSS Flat WasherSteelZinc/Yellow5/165/16 uss flat yellow zinc b18.22.118893
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QFCTXUSS Flat WasherSteelZinc/Yellow3/83/8 uss flat zinc yellow b18.22.11241
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QFCTXUSS Flat WasherSteelZinc/Yellow3/83/8 uss flat zinc yellow b18.22.11662
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QFCTXUSS Flat WasherGrade 5Zinc/Yellow1/21/2 uss flat thru-hardened for grade 5 & grade 8 applications yellow zinc b18.22.117200
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QFCTXUSS Flat WasherSteelZinc/Yellow3/43/4 uss flat zinc/yellow b18.22.1646
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QFCTXUSS Flat WasherSteelZinc/Yellow1/41/4 uss hard yellow zinc b18.22.1523
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QFCTXUSS Flat WasherSteelZinc/Yellow5/165/16 yzp uss hard 372 b18.22.17189
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QFCTXUSS Flat WasherSteelZinc/Yellow5/165/16 yzp uss hard 372 b18.22.1200
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QFCTXUSS Flat WasherSteelZinc/Yellow3/83/8 uss hard y/zinc b18.22.1400
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QFCTXUSS Flat WasherSteelZinc/Yellow3/83/8 uss hard y/zinc b18.22.1200
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QFCTXUSS Flat WasherSteelZinc/Yellow7/167/16 yzp uss hard 372 b18.22.11107
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QFCTXUSS Flat WasherSteelZinc/Yellow7/167/16 yzp uss hard 372 b18.22.1100
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QFCTXUSS Flat WasherSteelZinc/Yellow1/21/2 uss flat hardened y/zinc b18.22.1140
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QFCTXUSS Flat WasherSteelZinc/Yellow9/169/16 yzp uss hard b18.22.1130
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QFCTXUSS Flat WasherSteelZinc/Yellow5/85/8 yzp uss hard 372 b18.22.1298
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QFCTXUSS Flat WasherSteelZinc/Yellow5/85/8 yzp uss hard 372 b18.22.150
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QFCTXUSS Flat WasherSteelZinc/Yellow3/43/4 yzp uss hard b18.22.1256
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QFCTXUSS Flat WasherSteelZinc/Yellow3/43/4 yzp uss hard b18.22.1250
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1/41/4 uss thru-hard flat washers gr 8 z yellow b18.22.1184.4208591
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow5/165/16 uss thru-hard flat washers gr 8 z yellow b18.22.1153.939
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow3/83/8 uss thru-hard flat washers gr.8 zy b18.22.176.8
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow7/167/16 uss thru-hard flat washers gr 8 z yellow b18.22.114.83
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1/21/2 uss thru-hard flat washers gr 8 z yellow b18.22.145.4
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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 WasherGrade 8Zinc/Yellow5/85/8 uss thru-hard flat washers gr 8 z yellow b18.22.191.15
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow3/43/4 uss thru-hard flat washers gr 8 z yellow b18.22.176.76
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow3/43/4 uss flat washer gr 8 z yellow domestic b18.22.1976
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow7/87/8 uss thru-hard flat washers gr 8 z yellow b18.22.13316.34
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow11 uss thru-hard flat washers gr 8 zinc/yellow b18.22.168.47
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1 1/81 1/8 uss thru-hard flat washers gr 8 z yellow b18.22.11083.97
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1 1/41 1/4 uss thru-hard flat washers gr 8 zy b18.22.1578
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1 1/21 1/2 uss thru-hard flat washers gr 8 z yellow b18.22.174.66
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B & K FASTPAUSS Flat WasherSteelZinc/Yellow1/21/2 uss flat washers zinc yellow b18.22.15003.1953848
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General FMIUSS Flat WasherSteelZinc/Yellow2 1/22-1/2 uss hrdnd fw zinc yellow b18.22.174
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General FMIUSS Flat WasherSteelZinc/Yellow1 7/81-7/8 uss hrdnd fw zinc yellow b18.22.1172
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QFCTXUSS Flat WasherGrade 8Zinc/Yellow1 x 81 uss flat washer gr 8 zinc/yellow b18.22.1820
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QFCTXUSS Flat WasherSteelZinc/Yellow1/41/4 uss flat washer zinc/yellow b18.22.17167
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QFCTXUSS Flat WasherSteelZinc/Yellow3/83/8 uss flat washer zinc/yellow b18.22.1350
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QFCTXUSS Flat WasherGrade 8Zinc/Yellow5/85/8 uss flat washer grade 8 zinc yellow b18.22.115
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WurthOntUSS Flat WasherSteelZinc/Yellow3/4wsh flt uss a w st (zy) 3/4 b18.22.1120
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WurthOntUSS Flat WasherSteelZinc/Yellow1 3/4wsh flt uss a w st (zy) 1 3/4 b18.22.175
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow1/4gr8 USS f/w z&y domestic b18.22.182
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow3/8gr8 USS f/w z&y domestic b18.22.176
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow5/85/8 gr 8 USS f/w z&y domestic b18.22.118
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow7/87/8 gr 8 USS f/w z&y domestic b18.22.114
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow5/16gr8 USS f/w z&y domestic b18.22.18
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow3/43/4 gr 8 USS f/w z&y domestic b18.22.12
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow1 1/41 1/4 gr 8 USS f/w z&y b18.22.129
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THRDFASTOKUSS Flat WasherSteelZinc/Yellow3/8USS f/w & b18.22.12,275
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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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THRDFASTTNUSS Flat WasherGrade 8Zinc/Yellow1 1/81 1/8 gr 8 USS f/w z&y b18.22.154
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THRDFASTTNUSS Flat WasherGrade 8Zinc/Yellow1 1/41 1/4 gr 8 USS f/w z&y b18.22.12
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KBSTNUSS Flat WasherSteelZinc/Yellow1 3/81-3/8 !hardened! uss flat/w yellowznc b18.22.1360
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KBSTNUSS Flat WasherSteelZinc/Yellow3/43/4 !hardened! uss flat/w yellowznc b18.22.11,126
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KBSTNUSS Flat WasherSteelZinc/Yellow1/21/2 !hardened! uss flat/w yellowznc b18.22.1799
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KBSTNUSS Flat WasherSteelZinc/Yellow1/21/2 !hardened! uss flat/w yellowznc b18.22.14,800
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KBSTNUSS Flat WasherSteelZinc/Yellow5/85/8 !hardened! uss flat/w yellowznc b18.22.12,362
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KBSTNUSS Flat WasherSteelZinc/Yellow3/83/8 !hardened! uss flat/w .098min thick yellowznc b18.22.147,060
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KBSTNUSS Flat WasherSteelZinc/Yellow3/83/8 !hardened! uss flat/w mc2 .090thick yellowznc b18.22.19,750
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THRDFASTALUSS Flat WasherGrade 8Zinc/Yellow1/2gr 8 USS f/w z&y extra thk b18.22.1200
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THRDFASTMSUSS Flat WasherSteelZinc/Yellow1/4USS f/w z&y domestic b18.22.150
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THRDFASTMSUSS Flat WasherSteelZinc/Yellow3/8USS f/w z&y domestic b18.22.140
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THRDFASTOKUSS Flat WasherGrade 8Zinc/Yellow11 gr 8 USS f/w z&y domestic b18.22.133
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THRDFASTOKUSS Flat WasherSteelZinc/Yellow3/8USS f/w z&y domestic b18.22.12
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THRDFASTMSUSS Flat WasherGrade 8Zinc/Yellow11 gr 8 USS f/w z&y domestic b18.22.175
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THRDFASTMSUSS Flat WasherGrade 8Zinc/Yellow7/8gr 8 USS f/w z&y domestic b18.22.150
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THRDFASTMSUSS Flat WasherGrade 8Zinc/Yellow1/2gr8 USS f/w z&y domestic b18.22.160
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WSBKYUSS Flat WasherSteelZinc/Yellowq/washer flat uss a w zy 13/16 b18.22.11,636
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WSBKYUSS Flat WasherSteelZinc/Yellowq/washer flat uss a w zy 1 3/8 b18.22.1720
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MMFMIUSS Flat WasherSteelZinc/Yellow hard uss flat washer zdy usa domestic b18.22.1450
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MMFMIUSS Flat WasherSteelZinc/Yellow hard uss flat washer zdy usa domestic b18.22.18400
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MMFMIUSS Flat WasherSteelZinc/Yellow7/87/8 hard uss flat washer zdy usa domestic b18.22.1325
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/41-1/4 hard uss flat washer zdy usa domestic b18.22.1250
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MMFMIUSS Flat WasherSteelZinc/Yellow11 inch hard uss flat washer zdy usa domestic b18.22.1240
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MMFMIUSS Flat WasherSteelZinc/Yellow5/165/16 hard uss flat washer zdy usa domestic b18.22.15600
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/81-1/8 hard uss flat washer zdy usa domestic b18.22.1275
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/21-1/2 hard uss flat washer zdy usa domestic b18.22.1150
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MMFMIUSS Flat WasherSteelZinc/Yellow3/83/8 hard uss flat washer zinc yellow usa domestic b18.22.13600
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MMFMIUSS Flat WasherSteelZinc/Yellow5/165/16 hard uss flat washer zinc yellow usa domestic b18.22.15600
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MMFMIUSS Flat WasherSteelZinc/Yellow hard uss flat washer zinc yellow usa domestic b18.22.18400
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MMFMIUSS Flat WasherSteelZinc/Yellow7/87/8 hard uss flat washer zinc yellow usa domestic b18.22.1325
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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 WasherSteelZinc/Yellow7/167/16 hard uss flat washer zinc yellow usa domestic b18.22.12450
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/81-1/8 hard uss flat washer zinc yellow usa domestic b18.22.1275
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MMFMIUSS Flat WasherSteelZinc/Yellow hard uss flat washer zinc yellow usa domestic b18.22.1450
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MMFMIUSS Flat WasherSteelZinc/Yellow11 inch hard uss flat washer zinc yellow usa domestic b18.22.1240
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/41-1/4 hard uss flat washer zinc yellow usa domestic b18.22.1250
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MMFMIUSS Flat WasherSteelZinc/Yellow1 1/21-1/2 hard uss flat washer zinc yellow usa domestic b18.22.1150
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MMFMIUSS Flat WasherSteelZinc/Yellow5/85/8 hard uss flat washer zinc yellow usa domestic b18.22.1785
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