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ASME B18.21.1-2009 (R2016)

Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series) (B18.21.1 - 2009)

This standard covers the dimensional requirements, physical properties, and related test methods for helical spring-lock washers (#0 through 3 inches), tooth-lock washers (#2 through 1 ╝ inches), and plain washers (#0 through 3 inches). The inclusion of dimensional data in this Standard is not intended to imply that all products described are stock production items. Consumers should consult with suppliers concerning the availability of products.

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