Bag of 2 pcs.
Diameter: 5/16"
Diameter 2: 19/32"
Thickness: 3/32"
Material: Stainless Steel
Hardness: 18-8
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts
The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.