A in-16 UNF series SAE grade 5 bolt has a 1/4-in ID steel tube 10 in long, clamped between washer faces of bolt and nut by turning the nut snug and adding one-third of a turn. The tube OD is the washer-face diameter d = 1.5d = 1.5(0.75) = 1.125 in = OD. (a) Determine the bolt stiffness, the tube stiffness, and the joint constant C. (b) When the one-third turn-of-nut is applied, what is the initial tension F; in the bolt?