The machine part is held in place using the double-end clamp. The bolt at B has square threads with a mean radius of 4 mm and a lead of 2 mm, and the coefficient of static friction with the nut is µs = 0.5. If a torque of M = 0.4 N .m is applied to the nut to tighten it, determine the normal force of the clamp at the smooth contacts A and C
