ASME B18.21.1-2009(R2016)
Washers: Helical Spring-Lock@ Tooth Lock@ and Plain Washers (Inch Series)
- Standard No.
- ASME B18.21.1-2009(R2016)
- Published By
- American Society of Mechanical Engineers (ASME)
- Latest
- ASME B18.21.1-2009(R2016)
- Scope
- This standard covers the dimensional requirements, physical properties, and related test methods for helical spring-lock washers, tooth-lock washers, and plain washers. 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. NOTE: The word lock appearing in the names of products in this Standard is a generic term historically associated with their identification and is not intended to imply an indefinite permanency of fixity in attachments where the fasteners are used.
ASME B18.21.1-2009(R2016) history
- 0000 ASME B18.21.1-2009(R2016)
- 2009 ASME B18.21.1-2009 Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)
- 1999 ASME B18.21.1-1999 Lock washers (Inch series)
- 1994 ASME B18.21.1-1994 Lock washers (Inch series)
- 1990 ASME B18.21.1-1990 Lock washers (Inch series)
- 1972 ASME B18.21.1-1972 Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)
