# Rundown Selftap, Thread Cutting To Torque

The Selftap - Thread cutting to torque function enables tightening where the rundown torque required is greater than the Rundown complete torque, for example when tightening thin layers of metal using self-threading (or selftapping) screws. The selftap window starts when the torque value reaches SelftapTorqueMin/2. The torque must exceed SelftapTorqueMin, but not exceed Selftap-Torque-Max, during the angle window.

Rundown with a self tap screw

Parameter name | Description | Default value
--- | --- | ---
Selftap | Off: Selftap is turned off. On: Selftap is turned on. | Off
Length | Defines the angle to turn the socket during Self-tap. Measured from the end of the Start step. | 360°
Speed | Defines the speed during Selftap | 35 rpm
Torque min | Torque value for lower Selftap limit. | 0 Nm
Torque max | Torque value for upper Selftap limit. | Tool max torque