Bag of 2 pcs.
Diameter: 12mm
Diameter 2: 21mm
Thickness: 2.6mm
Material: Steel
Finish: Zinc
Hardness: Class 8
Style: Medium Split
Type: Lock Washer
Specifications: DIN 127
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.