U-Bolt M16 x50mm Thread, 89mm Inside Diam, 142mm Inside Height T304 Stainless Steel Includes two nuts per leg Conforms to British Standard 3974 PART 1: 1974 Fig 11A. Gripped U-bolt (Anchor) Use where it is necessary to grip the pipe in all directions T304 Stainless steel provides a corrosion and oxidation resistance, however it can tarnish. Used extensively in every day life, but if you need a higher level of corrosion resistance such as in a marine environment look for T316 All Measurements in mm Inside Diameter : 89 Inside Height : 142 Leg Centers : 105 Leg Length : 98 Material : T304 Stainless Steel (A2) Pipe Nominal Bore : 80 Suggested Pipe OD : 88.9 Thread length : 50 Thread Size : M16 Our manufacturing tolerances are + / - 1 mm) We use roll threading so the diameter of the bar is usually less than the thread size. Please ask if unsure