Traxxas 5189 4x13mm Screw Pins with Thread lock (set of 4) Set of four screw pins 4x13mm (with thread lock) Replaces worn or damaged parts Use Traxxas stock and hop-up replacement parts to get the most out of you Traxxas RTR vehicles This product is made from high quality materials and designed for lasting performance This is replacement hardware for use on RC vehicles; consult your user's manual for exact parts listings