1/4" x 31/64" Bronze Split Lock Washers LKWSRB-093 (36 pcs.)

Diameter: 1/4"
Diameter 2: 31/64"
Thickness: 1/16"
Material: Bronze
Nominal Size: 1/4" (#14)
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts

Box of 36.

The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.