Hey boat owners, this U-bolt kit has everything you need for securing your trailer's leaf springs! You get 4 heavy-duty U-bolts made from quality steel with a zinc coating that stands up to saltwater and freshwater environments. The dimensions are perfect for 2x2 boat trailer axles - 1/2\ diameter with 2-1/8\ inside width and 5-1/4\ inside length. The package includes all the hardware: 8 stainless steel nylon lock nuts, 8 flat washers, and 8 lock washers so you're ready to install right out of the box. Installation tip: use some lubricant when tightening to prevent wear, and stick with hand tools rather than impact wrenches for better control. These U-bolts are built tough for marine use but work great for automotive and industrial applications too. Whether you're doing routine maintenance or rebuilding your trailer, this complete kit saves you multiple trips to the hardware store. The corrosion-resistant coating means they'll last through seasons of use without rusting out on you. Seriously, if your current U-bolts are looking rough, this affordable replacement set will have your trailer riding smooth and secure in no time.