Steering column mount bolt. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Frame Rail End 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 Instrument Panel Crossmember to a 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 Support to it's mounting point. Steering Column Bolt. Frame Rail End. HEXAGON - HEAD Screw 8. Instrument Panel Crossmember. Mount bracket. Rail section. REINFORCED beam. Sidemember Assembly retainer. Steering Column Housing Support.