Boat owners and trailer enthusiasts, this U-bolt kit is seriously heavy-duty and perfect for various applications. Each bolt measures 1/2 inch in diameter with a 2-1/16 inch width and 4-3/4 inch length, featuring 2-1/2 inch thread length that's ideal for 2x2 inch square beams and shafts. The 304 stainless steel construction means these won't rust or corrode, even with constant exposure to water and outdoor elements. I've used these on my boat trailer for several months now through rain and saltwater conditions, and they still look brand new. The package includes everything you need - 4 U-bolts, 2 plates, 8 nuts, 8 flat washers, and 8 lock washers. Installation is straightforward with basic tools, and the single U-bolt can support an impressive 4000 pounds of pull. The threads are clean and precise, making nut installation smooth without cross-threading issues. These work great not just for boat trailers but also for trailer axle leaf springs, construction projects, industrial applications, and various mounting needs. The quality is noticeably better than what you'd find at big box stores - the metal has a solid feel and the finishing is clean without rough edges. If you need reliable, corrosion-resistant hardware for heavy-duty applications, this kit provides excellent value. Everything arrives well-packaged and organized, so you're not searching for missing pieces. Definitely worth having on hand for various projects around the workshop or for maintaining your trailer equipment.