How to Conduct the Loosening Torque Test Method
Every time a fastener is used to form a joint between two parts, torque control is a key element of that formula. Ensuring a well-tightened fastener is installed properly to the pre-defined torque specification will determine the success or failure of a product. Torque testing is key to identifying and reducing fastening failures.
A lack of monitoring and measuring torque is a lack of quality control. Insufficient torque can cause a screw or bolt to loosen from vibrations. Excessive torque can cause fasteners to overstretch and break. After a torque specification is determined for a joint, it is a good practice to perform periodic audits to verify proper torque is being achieved.
There are three universal torque testing methods that were established to provide a reference to the applied torque.