# LD - Loosening Detection

Tools
STwrench

This step monitor is only available for STwrench tools

This monitor can be used to check the torque and direction to see if a loosening is attempted when using the Wrench Production step strategy for an STwrench. If the applied torque is above the value set for Loosening Limit in the direction opposite to the configured thread direction of the program, the result shall be reported as NOK.