2014-20. Bracket nut. W/HYBRID. 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 Exhaust System Hanger. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Suspension Strut Tower. Power Brake Booster Nut. ABS Hydraulic Assembly. Exhaust System Hanger. Power Brake Booster. Support Bracket. Suspension Strut Tower.