Find the right size push nut or retaining washer from Grainger and reduce your assembly costs. Nylon retaining washers are specially designed to slide on and grip the screw shank. Spring steel push nuts also push on to the screw shaft and provide an instant grip. Both types of washer help eliminate costly threading and grooving operations. Once in position, the retaining washer or push nut is there to stay. Stock up on the size and finish you need at Grainger!