Split Ring Lock Washers (also referred to as "Spring Lock Washers", or most simply "Lock Washers") are circular washers split at a certain point to create a helical shape. This shape applies force between the head of a bolt or screw and the installation surface. This force creates a resistance to rotation and prevents nuts, bolts and screws from vibrating loose.
Lock Washers in this selection are made from through hardened Grade 8 Yellow Zinc.
Washer Thickness may vary slightly +/- depending on production run within IFI Tolerances