Standard U-Bolt Standard U-Bolt Steel Finish Hot Dipped Galvanized Thread Size 1/4 In.-20 Thread Length 1 1/2 in Inside Length 3 1/8 in Inside Width 1 1/8 in Pipe Size (In.) 3/4 in Characteristics ASME B18.2.2- ASTM A563 Grade A Includes (2) Nuts Package Quantity 10