CHEVROLET. Extension panel retainer nut. A solid metal or plastic block with a threaded hole in the center which is used to secure the Instrument Panel Air Bag Inflator Module to its mounting point. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Instrument Panel Crossmember. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Skid Plate. Bumper Extension Nut. Bumper Face Bar Mount Nut. Fender Liner Nut. Fog Light Trim Nut. Nut that secures the grille. Nut that secures the Radiator Shutter Assembly. Nut to secure Bumper Cover. Nut used to mount headLight. Radiator Support Air Deflector Nut. Radiator Support Splash Shield Nut. Spoiler Nut. Valance Panel Nut. Included with: Air Deflector, Center Support, Extension Panel, Headlamp Assembly, Lower Extension, Reinforcement beam, Skid Plate.