Skip to content

12mm x 21mm Plain Class 10 Steel Lock Washers

SKU: 73992
12mm x 21mm Plain Class 10 Steel Lock Washers

12mm x 21mm Plain Class 10 Steel Lock Washers

SKU: 73992
Box Size: 15 pcs.
Regular price $1047
Shipping calculated at checkout.

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

Nominal Size: 12mm
Inside Diameter: 12mm
Outside Diameter: 21mm
Thickness: 2.5mm
Material: Steel
Finish: Plain
Hardness: Class 10
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.