Nominal Size: #12 (7/32")
Inside Diameter: 7/32"
Outside Diameter: 15/32"
Thickness: 1/16"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Style: External Tooth
Type: Lock Washer
Application: Round|pan|or binding head
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.
