Hi there everybody I have a nice little problem which might not be so complicated after all. I need to push a heavy object using torque applied on a bolt. This is done manually, and the necessary torque needed is of interets. The attachment explains it quite well, I think. To overcome friction, the needed horisontal force to get moving is approximately 10 kN and the data of the metric bolt is as follows: Diameter = 30 mm Pitch = 1 mm (fine) So to be able to push the block with F, T is to be found. Suggestions anyone ?