Fender liner U-nut. Left. Right. A Nut used to secure the diesel exhaust fluid filler pipe to its mounting point. Bumper Face Bar Nut. Fender Liner Nut. Fender Nut. Fuel Filler Nut. Mud Flap Nut. Nut to secure Bumper cover. Wheel Arch Flare Nut. Wheel Arch Molding Clip. Wheel Arch Molding Nut. Window Regulator Nut. Included with: Fender Liner, Wheel opening Molding.