1.1 This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition.
1.2 The washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling.
1.3 Unless otherwise specified, the washers are furnished with dimensions conforming to B18.22.1, Type A, Tables 1A and Tables 1B.
1.4 Hardened washers for use with heat-treated structural bolts are covered by Specifications F 436 and F 436M.
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