1/2" x 57/64" Zinc Plated Grade 2 Steel External Tooth Lock Washers LWS-303
The item pictured is an approximation of what you will receive. Most of our fasteners are commodity items and may vary in finish, thread length, head stamping, and look from one batch to another.
Part Number: MF03970
Diameter 2: 57/64"
Hardness: Grade 2
Nominal Size: 1/2"
Style: External Tooth
Type: Lock Washer
Application: Round|pan|or binding head
The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.