Square bolt (C bolt) 48 mm ID * 88 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 = 12 mm B = 48 mm C = 88 mm D = 55 mm Centers = 60 mm R (inside radius) = 6 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