ASTM F844 covers round and miscellaneous shape flat washers. These unhardened washers typically have a larger outside diameter than F436 structural washers and are for general purpose use. They are suitable for use with A307 fasteners and whenever specified.
Mechanical Properties
Unless otherwise specified, F844 washers are not furnished to any mechanical requirements.
Chemical Requirements
Washers shall be steel, and unless otherwise specified, are not furnished to any chemical composition requirements.
Dimensional Requirements
Washers are typically supplied per ASME B18.21.1, standard flat washer dimensions.
Available Coatings
Plain finish or hot dip galvanized.