Diameter: 9/16"
Diameter 2: 1-1/4"
Thickness: 3/32"
Material: Brass
Nominal Size: 1/2"
Style: S Pattern
Type: Flat Washer

Box of 12.

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.