Left. Rail nut. Right. A Nut which attaches the water pump to it's mounting surface. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Coolant Pipe. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Door Access Cover. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Engine Coolant Expansion Tank. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Hood Molding. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the InterCooler Pipe. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Roof Header Panel. All Required. Back Glass Wiper Motor Nut. Bumper Cover Support Rail Nut. Bumper Guide Nut. Bumper Impact Bar Nut. Deck Lid Striker Nut. Deck Lid Trim Nut. Liftgate Hinge Nut. Nut to secure Bumper Cover. Nut used to secure the luggage carrier side Rail. Roof Molding Nut. SunRoof Frame Nut. Window Regulator Nut.