Square Washer, 9/16" Hole, 1/2" Bolt, Steel/Zinc Plated

These strut channel square washers are designed to facilitate a secure attachment point on strut channel when used with a channel nut, threaded rod, or additional 1/2" hardware. It can be used with all standard strut channel sizes. It is 1-5/8" square, and it features a zinc finish for superior protection.