Application: This Heavy Duty Square U-Bolt Kit is specifically designed for boat trailer axle leaf springs, fitting 2"" x 2"" boat trailer axles. The fully adjustable U-bolts allow for customization to meet your specific requirements, ensuring a secure fit that supports over 150 LBS per bolt, making it an essential component for maintaining your trailers stability and performance. Size: Each U-bolt measures 1/2"" in diameter, with an inside width of 2-1/8"" and an inside length of 5"". The 2-3/4"" thread length, combined with thick, durable steel construction, ensures robustness and longevity, providing reliable support for your trailer. Higher Quality: Crafted from high-quality steel, these boat trailer U-bolts are engineered for durability and resistance to deformation and rust. Their corrosion-resistant properties make them ideal for use in both saltwater and freshwater environments, ensuring that your trailer remains secure and functional under various conditions. More Applications: Beyond boat trailers, this versatile square U-bolt kit can be utilized in a variety of applications including pontoons, other types of trailers, and even for securing or connecting locking parts on rectangular wood and metal objects, making it a valuable addition to your toolkit. Package: The trailer axle U-bolt kit comes complete with 4 square U-bolts, 2 mounting plates, 8 hex nuts, 8 flat washers, and 8 lock washers, providing everything you need for a comprehensive installation. Whether you are maintaining your boat trailer or tackling a DIY project, the Heavy Duty Square U-Bolt Kit offers the strength and reliability needed for secure fastening. Its robust design ensures that it can withstand the rigors of both freshwater and saltwater environments, making it a trusted choice for boating enthusiasts and professionals alike. With its easy installation and adjustable features, you can customize the fit to meet your specific needs, ensuring that your trailer remains stable and secure on the road.