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2 1/2 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.

42 results, (click on any line for more information)
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SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSUSS Flat WasherSteelZinc/Clear2 1/22-1/2 USS flat 2 5/8 idx5 od4 gauge 1/lb35
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JacksonMSUSS Flat WasherSteelPlain2 1/22-1/2 USS flat 2 5/8 idx5 od 1/lb764
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Fastener OHUSS Flat WasherSteelPlain2 1/2 x 5.0 x 2 5/8uss flat 2-1/2 (od 5.0xid 2-5/8xthk 15/64 ) plain 10
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AbabaCAUSS Flat WasherSteelPlain2 1/2-52-1/2 uss f/w stl pln (5 od) b18.22.19
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ACCURATEILUSS Flat WasherSteelPlain2 1/2flat - uss19
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SunPackFLUSS Flat WasherSteelPlain2 1/22-1/2 uss flat plain21
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MESAFASTCAUSS Flat WasherSteelPlain2 1/2USS flat (1.04/ #)24.0
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THRDFASTFLUSS Flat WasherSteelGalvanized2 1/2USS f/w hdg b18.22.135
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THRDFASTFLUSS Flat WasherSteelPlain2 1/2USS f/w b18.22.13
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SunPackFLUSS Flat WasherSteelGalvanized2 1/22-1/2 uss flat hdg3
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ISSCOMOUSS Flat WasherSteelPlain2 1/2flat washer365 #
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ISSCOMOUSS Flat WasherSteelGalvanized2 1/2hot dip galvanized276 #
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BHAMALUSS Flat WasherSteelZinc/Clear2 1/2USS flat zn28
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Future FastenerTXUSS Flat WasherSteelBlack Oxide2 1/22-1/2 uss flat washer blk42
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JacksonMSUSS Flat WasherSteelGalvanized2 1/2USS flat hot dip 2 5/8 idx5 od 1/lb131
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DeltaTXUSS Flat WasherSteelZinc/Clear2 1/2flat washer uss zinc 2 1/2 (5 OD)134
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THRDFASTALUSS Flat WasherSteelGalvanized2 1/2USS f/w hdg b18.22.1432
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BHAMALUSS Flat WasherSteelPlain2 1/22-1/2 uss flat b18.22.1110
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BHAMALUSS Flat WasherSteelPlain2 1/22 1/2 uss flat dom b18.22.119
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ZAL INDUSCAUSS Flat WasherSteelPlain2 1/22-1/2 uss flat washer36
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Kanebridge ILUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss flat washer zinc625,000
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LibertyILUSS Flat WasherSteelZinc/Clear2 1/2USS flat zinc39
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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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XL ScrewGAUSS Flat WasherSteelZinc/Clear2 1/2uss flat s zp50
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HayesCAUSS Flat WasherSteelPlain2 1/22-1/2 uss flat washer pln3
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SWACOOHUSS Flat WasherSteelPlain2 1/22 1/2 uss flt wash low stl pln47
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SunPackFLUSS Flat WasherSteelPlain2 1/2USS flat21
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Valley NuWAUSS Flat WasherSteelGalvanized2 1/2(5 od) USS cut hdg10
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs)40
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs)40
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Valley NuWAUSS Flat WasherSteelPlain2 1/2(5 od) uss30.5
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc40
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (pcs) 10 pcs40
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Bostwick INUSS Flat WasherSteelPlain2 1/22-1/2 uss flat washer-plain152
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs)40
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs)40
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LightningLAUSS Flat WasherSteelPlain2 1/2astm f844 USS flat234
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs)40
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc40
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HodellOHUSS Flat WasherSteelZinc/Clear2 1/22 1/2 uss fl wash zinc (lbs) 10 lb pack40
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THRDFASTOKUSS Flat WasherSteelPlain2 1/2USS f/w b18.22.14
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LightningLAUSS Flat WasherSteelGalvanized2 1/2astm f844 USS flat s hot dipped67
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