#12 x 7/32" x 11/32" Zinc Plated Grade 2 Steel Split Lock Washers (100 pcs.)

Diameter: 7/32"
Diameter 2: 11/32"
Thickness: 1/16"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Nominal Size: #12
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts

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.