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 Product Details Product Details Zinc Plated. Includes Flat Washers And Nyloc Nuts. A: 1/2″-13. B: 3-1/8″. C: 4″. D: 2″. Square. Sold in Pair. Used for mounting brackets to trailer frame.
