Square bolt (C bolt) M12 x 90 mm thread, 60 mm ID x 150 mm IH - BZP 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 = 60 mm C = 150 mm D = 90 mm Centers = 72 mm R (inside radius) = 6 mm Material Finish Bright Zinc Plated 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