General description U-Bolt M20 x65mm Thread, designed for gripping pipes securely in all directions. This U-bolt features a bright zinc plated finish, providing a shiny appearance and some protection against corrosion, making it best suited for indoor use. Technical specifications Thread Size: M20 Thread Length: 65 mm Inside Diameter: 330 mm Inside Height: 390 mm Leg Centers: 350 mm Leg Length: 225 mm Material: Zinc Plated (ZP) Pipe Nominal Bore: 300 mm Suggested Pipe OD: 323.9 mm Manufacturing Tolerances: +/- 1 mm Compatibility and accessories Includes two nuts per leg Other information Conforms to British Standard 3974 PART 1: 1974 Fig 11A