U-Bolt M12 x86 mm Thread, 90 mm Inside Diam, 145 mm Inside Height Galvanised Nuts not included with this item Graphskill standard U-Bolt Galvanised - A duller finish than BZP, typically 50 microns thick covering of Zinc and therefore provides much more protection suitable for many out door applications All Measurements in mm Inside Diameter : 90 Inside Height : 145 Leg Centers : 102 Leg Length : 100 Material : Galvanised Pipe Nominal Bore : Suggested Pipe OD : 88 Thread length : 86 Thread Size : M12 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 If using your own nuts on galvanised products please ensure they are tapped oversize to allow for the galvanised layer