Square bolt (C bolt) 50 mm ID * 70 mm IH - T316 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 = 50 mm C = 70 mm D = 30 mm Centers = 58 mm R (inside radius) = 4 mm Material Finish T316 Stainless steel Marine grade stainless steel also called A4 Tolerance on dimensions +/- 1 mm. Please note that as we use roll threading, the bar diameter is slightly less than the thread diameter