What would be the cumulative scatter of the four variables we used in the Figures 17.2 through 17.7 if we combined them arithmetically? How does this compare with the scatter computed in the text using the square root of the sum of squares? What do we mean by an overdesigned joint? Who should pick the preload for a safety-related joint? In most situations what is your best guide to a correct torque? Why should you keep records of the torques and procedures used in your applications?