Given the initial torque ( in lb ) imparted upon a UNC 4-40x 1/2 Type II Cross Recessed Pan Head machine screw and nut, how can I figure out the clamping force imposed upon the bolted joint? I have the equations to find the bolt preload given an initial torque, but not the clamping force. To add insult to injury, the screw/bolt system has several bushings in it. Is this something that I need to consider when determining the actual compressive force on the bolted joint? Lastly, I have heard mention of a book called the "bolting bible"; does anybody know of this book or where it can purchased?
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