This Hot-Dipped Galvanized Trailer U-Bolt will meet your specific requirements. Hot-Dipped Galvanized U-Bolts are great for preventing rust and corrosion. These U-Bolts can be used on boat trailers or utility trailers. Check your measurements and match them up with the measurements shown in the picture for a perfect fit. Each Galvanized U-Bolt comes with (2) Galvanized Flat Washers, (2) Galvanized Lock Washers, (2) Galvanized Hex Nuts.
Thread Size: 1/2-13
This is a slightly less common u bolt to be used. However, it does have its unique uses. With a 1/2" diameter, it is strong enough to mount larger trailer applications. The 1 7/8" inner diameter makes it able to go around 1 1/2" to 1 3/4" diameter material. With a 5" Length, you could expect to use this on a frame that is up to 4 inches in size.
In some unique cases, this u bolt is used to mount trailer leaf springs to a welded plate on the Axle beam itself.