Features: 1.Protective Function: The U bolts effectively secure the trailer axle to prevent loosening and shifting. This protects the transportation load of the trailer and reduces the risk of damage caused by bumpy roads and vibrations. 2.High Performance: The bolt kit undergo rigorous testing and quality control to withstand high loads and vibrations, ensuring a secure connection between the trailer and the axle. 3.Secure and Safe: The trailer U bolt kit is manufactured using high strength metal materials to ensure safety and reliability, strong structure not easy to deform and damage. 4.Easy Installation: Comes with all the necessary accessories and components, making installation quick and convenient. Users can assemble and install these parts themselves with ease and accuracy. 5.Wide Compatibility: Trailer leaf springs hanger set is suitable for 5200 to 7000lbs 3in Diameter Cargo Boat Trailer Axle, and ensuring it meets the specific needs of different models. Specification: Item Type: Trailer U Bolt Kit Material: Metal Size: U bolt stud diameter: 1/2in Application: Fit for 5200 to 7000lbs 3in Diameter Cargo Boat Trailer Axle PackageList: 4 x U Bolts8 x Nuts16 x Spacers2 x Hanging Plates