1/2" x 7/8" Chrome Plated Grade 8 Steel Split Lock Washers (10 pcs.)

Diameter: 1/2"
Diameter 2: 7/8"
Thickness: 1/8"
Material: Steel
Finish: Chrome
Hardness: Grade 8
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts

Box of 10.

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