1/4" x 3/8" Plain Steel High Collar Lock Washers (100 pcs.)

Diameter: 1/4"
Diameter 2: 3/8"
Thickness: 1/16"
Material: Steel
Finish: Plain
Nominal Size: 1/4" (#14)
Style: High Collar Split
Type: Lock Washer
Application: Confined Areas

Box of 100.

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