Left. Outer tie rod lock nut. Right. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Engine Mount Support Bracket. Automatic Transmission Mount Nut. Manual Transmission Mount Nut. Nut for the Engine Mount. Nut used to secure the Steering Tie Rod. Part not reusable, replace only. Suspension Control Arm Nut. Included with: Outer Tie Rod, Outer Tie Rod Part cannot be reused/reinstalled.