1. Two plates are fastened by a bolt and nut as shown. Calculate (a) The normal stress in the bolt shank. (b) The average shear stress in the head of the bolt. (c) The shear stress in the threads. (d) The bearing stress between the head of the bolt and the plate. Assumption: The nut is tightened to produce a tensile load in the shank of the bolt of 10 kips. -2 in. 1 in. in T 0.847 in.