Lock washers add spring tension or bite beneath a fastener head or nut, helping resist loosening from vibration.
Nominal Size: #14 (1/4")
Inside Diameter: 1/4"
Outside Diameter: 39/64"
Thickness: 1/16"
Material: Steel
Finish: Zinc
Hardness: Grade 2
Style: External Tooth
Type: Lock Washer
Application: Round|pan|or binding head
The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.