Determine the required horizontal force that must be applied perpendicular to the handle...

Determine the required horizontal force that must be applied perpendicular to the handle in order to develop a 900-N clamping force on the pipe. The single square-threaded screw has a mean diameter of 25 mm and a lead of 5 mm. The coefficient of static friction is = 0.4. Note: The screw is a two-force member since it is contained within pinned collars at A and B.