5/16" x 21/64" x 9/16" 18-8 Stainless Steel AN Washers (20 pcs.)

Diameter: 21/64"
Diameter 2: 9/16"
Thickness: 5/8"
Material: Stainless Steel
Hardness: 18-8
Nominal Size: 516"
Style: AN
Type: Flat Washer

Box of 20.

A flat washer is a thin, usually round, plate with a hole in the middle that is normally used to distribute the load of a threaded fastener. USS flat washers have a large, wider body. SAE flat washers are machined to a tighter specification and have a smaller outside diameter.