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M3 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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Buy USS Flat Washers from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
THRDFASTFLUSS Flat WasherSteelZinc/ClearM33USS f/w82
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THRDFASTFLUSS Flat WasherSteelZinc/ClearM30USS f/w30
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THRDFASTFLUSS Flat WasherSteelZinc/ClearM30USS f/w45
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THRDFASTFLUSS Flat WasherSteelZinc/ClearM3USS f/w24,000
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OSSCORIUSS Flat WasherSteelPlainM30M30 flat uss24
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OSSCORIUSS Flat WasherSteelPlainM36M36 flat uss1
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THRDFASTMSUSS Flat WasherSteelPlainM30USS f/w12
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THRDFASTFLUSS Flat WasherSteelZinc/ClearM36USS f/w3
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