Assemblers measure torque during fastening to ensure process capability.
To many manufacturers, the concept of torque is a mystery. Despite the confusion, correct control of this force is critical to quality manufacturing and has a direct impact on bottom-line issues like product quality, reliability and safety. Controlling torque applied by screwdrivers and wrenches is absolutely necessary for maintaining and controlling assembly quality. It is no longer sufficient just to run a fastener until it stops and hope that it is tight enough.