Home Towing & Transportation Trailering Towing & Hitching Square Zinc Plated U-Bolt Kit (1/2”-13 x 3-1/8” x 4” x 2”) Tie Down Square Zinc Plated U-Bolt Kit (1/2”-13 x 3-1/8” x 4” x 2”) $11.89 Square Zinc Plated U-Bolt Kit (1/2”-13 x 3-1/8” x 4” x 2”) quantity Add to cart