McMaster 91765A112 Split Lock Washer Assortment for Inch Screw Sizes, Zin-Plated Steel, 350 Pieces

Keep a collection of common lock washers on hand to stop nuts and screws from loosening due to mild vibration. These washers have split ends that bite into the fastener to keep it secure. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.

Labels in the lid include our part numbers, so it's easy to replenish the assortments.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.