REAR. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Radiator Support Panel. Battery Hold Down Nut. Battery Tray Nut. Body B-Pillar Trim Panel Nut. Body C-Pillar Trim Panel Nut. Bumper Extension Nut. Engine Control Module Nut. Nut used to mount headlight. Nut used to secure the speaker. Quarter Panel Trim Panel Nut. Included with: Battery Tray, Front Trim, Mount Panel, Upper Quarter Trim.