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#12 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.
2 results, (click on any line for more information)
| Buy USS Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Alma Bolt | MI | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12 | #12 uss (.25 x .562 x .050) st. st. flat washer b18.22.1 | 848 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | #12 | #12 uss flat washers zinc b18.22.1 | 106876 |
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