Standard U-Bolt Standard U-Bolt Steel Finish Hot Dipped Galvanized Thread Size 1/4 In.-20 Thread Length 3/4 in Inside Length 1 1/4 in Inside Width 9/16 in Pipe Size (In.) 1/4 in Characteristics ASME B18.2.2- ASTM A563 Grade A Includes (2) Nuts Package Quantity 10