Tension Control in Bolted Joints
Threaded fasteners can do a good job of holding things together only when they are properly tightened. The fastener to ensure the proper performance of the joint must produce an appropriate tension. To this day a simple, inexpensive, and effective way to determine if a fastener is properly tightened has not been
found. Through the years, satisfactory ways have been discovered, but they are neither simple nor inexpensive. In most situations we rely on less-than-perfect, but adequate traditional methods.
