. Radiator support nut. Sedan/Wagon. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Radiator Support Panel. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Radiator Support Side Panel. Bumper Cover Support Rail Nut. Nut that secures the Radiator Shutter Assembly. Part serviced with Support. Shutter Assembly. Side Panel. Bumper Cover Rail. Mount cap. Repair bracket. Retainer plate. Included with: Guide, Mount, Mount bracket, Radiator Support, Support.