Door check bolt. Left.to door. Rear. Right.to door. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Door Lock Cylinder to it's mounting point. Bolt attaching Door latch to vehicle. Bolt that secures the exterior Door handle. Door Check Bolt. Check mount. Latch. Cylinder AND keys. Exterior Handle. Handle, outside screw. Lock Assembly.