Detail & Specs
Metric Split Lock Washer - Spring Steel DIN 127-B
Split lock washers exert a spring force between the head of the fastener and the parent material, increasing friction and providing resistance against rotation / loosening from vibration.
DIN 127-B lock washers have square ends.
Also known as general use spring lock metric washer, helical shape washer. Not to be used with reverse thread (left hand) fasteners.