#10 x 7/32" x 1/2" Black Oxide Grade 2 Steel Lock Washers

Diameter: 7/32"
Diameter 2: 1/2"
Thickness: 3/64"
Material: Steel
Finish: Black Oxide
Thread Type: SAE
Hardness: Grade 2
Nominal Size: #10
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.