U-Bolt, Round Bend, Steel, Finish Hot Dipped Galvanized, Thread Size 5/16 In.-18, Thread Length 1 1/8 in, Inside Length 2 11/16 in, Inside Width 1 3/4 in, Pipe Size (In.) 1 1/4 in, Characteristics ASME B18.2.2- ASTM A563 Grade A, Includes (2) Nuts, Package Quantity 170