FCH News

1 3/8 Flat Washers (ASME B18. 22.1)

Flat Washers, or just Plain Washers, are a flat annulus or ring, often of metal, used to spread the load from the head of a screwed fastening to the base material. Flat washers are used to increase the bearing surface of a nut or fastener's head thus spreading the clamping force over a larger area.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHFlat Washer316, 317, A4 StainlessPlain1 3/81-3/8 flat 316 s/s b18.22.1 () () ()4
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Pac BoltBCFlat WasherSteelGalvanized1 3/81-3/8 flat cut washers galv b18.22.1397
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Marine FastenersFLFlat Washer316, 317, A4 StainlessPlain1 3/81 3/8 flat 316ss 316ss b18.22.12390
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THRDFASTALFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 3/8 x 318-8 ss spec. dim. f/w b18.22.1454
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