Tie rods are structural members that are rod or bar-shaped and are used to prevent two parts from separating. They can be made from a variety of materials, including mild steel, carbon steel, alloy steel, and stainless steel. Tie rods can come in different sizes, including 10 mm, 12 mm, 16 mm, M38, and 100. The length of a tie rod assembly is usually measured from pin to pin, which is the centerline of the pin of one clevis to the centerline of the pin of the opposing clevis