7/16" x 3/4" 316 Stainless Steel Lock Washers

Diameter: 7/16"
Diameter 2: 3/4"
Thickness: 1/8"
Material: Stainless Steel
Hardness: 316
Style: Medium Split
Type: Lock Washer

Box of 8.

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