General description U-Bolt M16 x 123 mm Thread, 245 mm Inside Diameter, 322 mm Inside Height, Zinc Plated. This U-Bolt includes two nuts per leg and is designed for indoor use, providing a shiny finish due to a 3-micron bright zinc plating applied to the steel. Technical specifications Inside Diameter: 245 mm Inside Height: 322 mm Leg Centers: 261 mm Leg Length: 200 mm Material: Zinc Plated (ZP) Suggested Pipe OD: 243 mm Thread Length: 123 mm Thread Size: M16 Manufacturing Tolerances: +/- 1 mm Threading: Roll threading used, diameter of the bar is usually less than the thread size