Nominal Size: #4
Inside Diameter: 7/64"
Outside Diameter: 13/64"
Thickness: 1/32"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts
Box of 100.
The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.
