Square bolt (C bolt) M12 x 50 mm thread, 122 mm ID x 175 mm IH - Galvanised Mild Steel Galvanised Mild 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 = 122 mm C = 175 mm D = 50 mm Centers = 134 mm R (inside radius) = 6 mm Material Finish Galvanised Mild Steel Tolerance on dimensions +/- 1 mm. Please note that as we use roll threading, the bar diameter is slightly less than the thread diameter