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2 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 
GLFOHUSS Flat WasherSteelPlain22 uss flat stl pln b18.22.1 () () ()57
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GLFOHUSS Flat WasherGrade 8Plain22 uss flat gr 8 stl pln b18.22.1 () () ()35
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AbabaCAUSS Flat WasherSteelZinc/Clear2-4 1/22 uss f/w stl znc (4-1/2 od) b18.22.123
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AbabaCAUSS Flat WasherSteelPlain2-4 1/22 uss f/w stl pln (4-1/2 od) b18.22.14
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AbabaCAUSS Flat WasherSteelZinc/Clear2-4 1/22 uss f/w stl znc (4-1/2 od) b18.22.15
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