Upgrade your towing experience with our 4 Pack Square U-Bolt for Trailer, designed specifically to fit 2/2.5/3/3.5/4-inch wide leaf springs. Made from high-quality galvanized steel, these U-bolts offer superior durability and corrosion resistance, making them ideal for heavy-duty applications in trucks, boats, and trailers. This complete kit provides everything you need for a straightforward installation, ensuring your leaf springs stay securely locked together for improved axle torque control and a smoother ride on any journey.