The torque that registers at the first motion of turning is:

The torque that registers at the first motion of turning is known as breakaway torque. This type of torque represents the amount of force needed to initiate the movement of a fastener, particularly when it has been subjected to initial friction or bonding due to environmental factors like corrosion or material compatibility. Understanding breakaway torque is crucial in various applications, as it indicates the minimum torque required to overcome static friction before motion can occur, allowing for proper fastening practices and maintenance protocols. This concept is vital, especially when working with heavily torqued fasteners or those exposed to harsh conditions that may affect their operability.