Hold down nut. A Nut used to retain the Cowl Panel to it's mounting point. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Hood Latch Support. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Intercooler pipe. Battery Hold Down Nut. Bumper Face Bar Nut. Center High Mount Stop Light Nut. Engine Air Intake Hose Nut. Fender Support Nut. Radiator Support Air Deflector Nut. Valance Panel Nut.