5/16" x 21/64" x 3/4" Brass S Pattern Flat Washers (20 pcs.)

Diameter: 21/64"
Diameter 2: 3/4"
Thickness: 1/16"
Material: Brass
Nominal Size: 5/16"
Style: S Pattern
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.