#12 x 7/32" x 13/32" Zinc Plated Grade 2 Steel Internal Tooth Lock Washers

Diameter: 7/32"
Diameter 2: 13/32"
Thickness: 3/64"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Nominal Size: #12 (7/32")
Style: Internal Tooth
Type: Lock Washer
Application: Smaller head screws

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.