U-Bolt M16 x 65 mm Thread, 89 mm Inside Diam, 142 mm Inside Height T316 Stainless Steel Includes two nuts per leg Graphskill standard U-Bolt T316 Stainless Steel is suitable for anywhere you would use T304 BUT has the added advantage of being suitable for marine solutions. The molybdenum increases the corrosion resistance to withstand attack from many industrial chemicals and solvents and of course chlorides All Measurements in mm Inside Diameter : 89 Inside Height : 142 Leg Centers : 105 Leg Length : 98 Material : T316 Stainless Steel (A4) Pipe Nominal Bore : Suggested Pipe OD : Thread length : 65 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