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5/16" x 21/64" x 1/2" Zinc Plated Grade 2 Steel Safety Lock Washers

5/16" x 21/64" x 1/2" Zinc Grade 2 Safety Lock Washers (25 pcs.)

SKU: 77223
Regular price $1115
Shipping calculated at checkout.

Diameter: 21/64"
Diameter 2: 1/2"
Thickness: 3/64"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Nominal Size: 5/16"
Style: Safety
Type: Lock Washer

Box of 25.

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