Left.SEDAN. Rear bracket nut. Right.SEDAN. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Roof Headliner. Junction block mounting Nut. Nut used to secure side marker lamp to vehicle. HexAGONAL FL. Blind spot radar. Bracket. Cable Assembly. Distribution box. Headliner. Junction Block. Side Marker Light. Signal lamp Assembly. Wire harness.