58mm Square Top U-Bolt measuring 140mm long from inside the U section and 59mm between the legs with 50mm thread length, made from 12.9mm (1/2") rod with a rolled whitworth thread.
Remember, Nyloc Nuts and Washers need to be ordered separately
A: 140mm (5-1/2")
C: 12.9mm (1/2")
D: 50mm (2")