# Selftap

The Selftap step 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 self-tapping) screws. The selftap window starts when the torque value reaches SelftapTorqueMin/2. The torque must reach over SelftapTorqueMin, but not pass SelftapTorqueMax, during the angle window.

Parameter | Description | Default value
--- | --- | ---
Selftap | Activates the Selftap step. | Off
Speed | Defines the speed during Selftap. | Soft start speed or 5% of ToolMaxSpeed
Length | Defines the angle to turn the socket during Selftap. Measured from the end of the Start step. | 360°
Torque min | Torque value for lower Selftap limit. | 0 Nm
Torque max | Torque value for upper Selftap limit. | Tool max torque