Stihl BT 45 Manual page 7

Use the following procedure when refitting a DG or P screw in an existing thread:
– Place the screw in the hole and rotate it counterclockwise until it drops down slightly.
– Tighten the screw clockwise to the specified torque.
This procedure ensures that the screw engages properly in the existing thread and does not form a new thread
and weaken the assembly.
Power screwdriver settings for polymer:
Important:
Do not mix up screws with and without binding head
6
Plastoform screws
DG screws
max. 600 rpm
max. 500 rpm
BT 45