Steering wheel nut. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Air Bag Clockspring. Part included in column assembly. Steering Shaft Nut. Steering Wheel Nut. Air Bag Clockspring. Alignment cam. ASSEMBLY -. Coil. Horn wire. Retainer. Steering Shaft. Switch ASSEMBLY. Top. Wheel. Included with: Column assembly, Steering cloumn assembly, Steering column, Steering column assembly, Steering Wheel.