Here are some reference photos of SMARTBOLTS® be installed on steel structure of crane runway at FAURECIA AUTOMOTIVE. Within common maintenance and re-torquing was not able to achieve correct preload due to variable friction factors and bolts stayed wrongly tightened and after a short time loosened. Now safety and trouble-free operation is secured and inspection is done by visual check to find out readily actual status and take corrective action if really needed.
Do not forget, that torque is a rotational force that does not provide joint security, it is only an indicator of „how hard it is to turn a bolt“!
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