There are many different methods for testing bolt quality and strenghth from using devices to having “smart” bolts. Alltorc offers the Calibore which is a hydraulic load cell that can measure the applied pressure in KIPS to a bolt. You must first know your bolt dimensions so you can select the proper plate, bushing and possible spacers to effectivley test the bolt. Once this is determined you will install the bolt into a Calibore along with the pre-selected bushing, plate, washer and nut. Engineering will provide the acceptable predetermine load, once you have this value the user will beging to apply torque or tensions to the bolt until the proper load is achieved. If the bolts from a certain batch show the same results, often this determines that they are safe and approved for use.