Prime-Line 1/2 in. Zinc Plated steel Axle Hat Push Nuts (25-Pack)

Axle Hat Nuts, also called cap nuts, are not threaded and are held in place by an inward facing contact points. They can be installed by gently tapping into pace using a hammer or mallet. Hat nuts are most often used to hold wheels in place on dollies/hand trucks, carts, pressure washers, air compressors and etc.