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3 USS Flat Washers (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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Buy USS Flat Washers from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
B & K FASTPAUSS Flat WasherSteelPlain33 uss flat washers plain b18.22.1254
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Bostwick INUSS Flat WasherSteelPlain33 uss flat washer b18.22.161
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THRDFASTFLUSS Flat WasherSteelGalvanized33 USS f/w hdg b18.22.11,388
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THRDFASTFLUSS Flat WasherSteelPlain33 USS f/w b18.22.11,074
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THRDFASTFLUSS Flat WasherSteelGalvanized33 USS f/w hdg b18.22.14
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All SizeTXUSS Flat WasherSteelPlain33 uss flat washer plain b18.22.123
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