Left.ONE PIECE BUMPER. Right.ONE PIECE BUMPER. Side support nut. A solid metal or plastic block with a threaded hole in the center which is used to secure the Winch Motor to it's mounting point. Bumper Face Bar Mount Nut. Bumper Face Bar Nut. Bumper Impact Bar Nut. Nut to secure Bumper cover. Suspension Stabilizer Bar Link Nut. Tow Hook Nut.