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1 inch length 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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| BCSB | CA | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .438 x 1 x .064 | .438x 1x .064/.104 thick flat washer stainless steel usa b18.22.1 | 3,000 |
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