U Bolt; Applicable Standard ASME B31.1, WW-H-171 Type 24, MSS-SP-69 Type 24, BSPSS-BS3974; Type Round Bend; Inside Width 1-3/8"; Nominal Diameter 3/8"; Thread Length 2-1/8"; Center Distance 1-5/8"; Material Carbon Steel; Finish Black; Capacity 580 Lb at 650 Deg F, 454 Lb at 750 Deg F; Pipe Size 1"; Includes (4) Hex Nut; Tangent Length 2-3/4"; Application Commercial, Industrial, Pharmaceutical, Petrochemical, Hospital; Weight 0.12 Lb; Packaging Quantity 100 per Box; Warranty 1 Year Limited