U Bolt; Applicable Standard ASME B31.1, WW-H-171 Type 24, MSS-SP-69 Type 24, BSPSS-BS3974; Type Round Bend; Inside Width 4-5/8"; Nominal Diameter 1/2"; Thread Length 3"; Center Distance 5-1/8"; Material Carbon Steel; Finish Black; Capacity 2700 Lb at 650 Deg F, 2114 Lb at 750 Deg F; Pipe Size 4"; Includes (4) Hex Nut; Tangent Length 4-1/2"; Application Commercial, Industrial, Pharmaceutical, Petrochemical, Hospital; Weight 0.9 Lb; Packaging Quantity 25 per Box; Warranty 1 Year Limited