Left.COUPE. Rear. Reinforcement bolt. Right.COUPE. A Bolt which attaches the quarter panel 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 Floor Pan Crossmember 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 Rocker Panel Reinforcement 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 Rocker Panel to it's mounting point. Bolt that secures the Floor pan Reinforcement to the Floor pan. Floor Pan Bolt. Suspension Crossmember Bolt. Wheelhouse Bolt.