Lock washers add spring tension or bite beneath a fastener head or nut, helping resist loosening from vibration.

Nominal Size: 3/4"
Inside Diameter: 3/4"
Outside Diameter: 1-1/4"
Thickness: 7/32"
Material: Steel
Finish: Zinc
Hardness: Grade 5
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.