"TRICKING A TORQUE WRENCH"
When it comes to applying the proper force to installing wheels on highway trucks and trailers, the torque wrench has become a valuable tool. When I started working in the tire industry, the method of installing wheels was to tighten them with a 1" impact until they would not turn any more. That made them tight.
What we didn't know was that to get proper tightness, the bolt needs to stretch slightly but be able to relax when the pressure is removed.