7/8" x 29/32" x 1-9/32" Zinc Plated Grade 2 Steel Safety Lock Washers

Diameter: 29/32"
Diameter 2: 1-9/32"
Thickness: 3/32"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Nominal Size: 7/8"
Style: Safety
Type: Lock Washer

Box of 4.

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