This sliding door roller axle repair kit comes in a zinc-plated finish. It includes stepped axles, roll pins, standard rivets, carriage bolts and hex nuts. This axle repair kit helps repair your patio door rollers. The kit includes stepped axles, roll pins, a standard 1/4 in. rivet, a 1/4-20 carriage bolt, a 1/4-20 hex nut, and binder posts and screws.