ASTM F844-19(2024) PDF

ASTM F844-19(2024) PDF

1.1This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition.

1.2These washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling.

1.3Unless otherwise specified, washers are furnished with dimensions conforming to B18.21.1, Type A, Table 11.

1.4Hardened washers for use with heat-treated structural bolts are covered by Specifications F436/F436M.

1.5The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.