U-Bolt; Inside Length=44.5 mm | 1.750 in, Inside Width=25.4 mm | 1.000 in, Thread Size=1/4-20

This U-Bolt and included nuts are made of Steel. They have a 1/4-20 thread and fit a .500 in pipe size. The inside width is 1.000 in and the inside height is 1.750 in.