Support bracket nut. A Nut used to secure the hybrid / electric vehicle sound alert speaker bracket to the vehicle or the speaker to the bracket. A solid metal or plastic block with a threaded hole in the center which is used to secure the Curtain 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 ABS Hydraulic Control Unit. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Engine Torque Strut. ABS Hydraulic Actuator Nut. Air Bag Control Module Nut. Body A-Pillar Trim Panel Nut. Console Nut. Engine Control Module Nut. Tail Light Nut.