Diameter: 6mm
Diameter 2: 12mm
Thickness: 1.4mm
Material: Steel
Finish: Black Phosphate
Hardness: Class 10
Style: Medium Split
Type: Lock Washer
Specifications: DIN 127
Application: Nuts and Bolts
Box of 2428.
The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.