Square bolt (C bolt) 65 mm ID * 65 mm IH - T304 Stainless Steel complete with 1 full nut and 1 half nut on each leg Please refer to diagram for details (all measurements in mm): A = 8 mm B = 65 mm C = 65 mm D = 40 mm Centers = 73 mm R (inside radius) = 4 mm Material Finish 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 Tolerance on dimensions +/- 1 mm. Please note that as we use roll threading, the bar diameter is slightly less than the thread diameter