Support bolt. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Steering Column Housing Support to it's mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Steering Column Housing to it's mounting point. Bolt used to secure the Steering Column Cover. Part included in Column assembly. Steering Wheel Bolt. Clmn Cover. Tube. Wheel. Included with: Column assembly, Steering Column, Steering Column assembly.