Overview of screw tightening torques

Overview of screw tightening torques

Type	Type, size and length	Number	Tightening torque
HT D (direct control)	Self-tapping screws 3x25 mm	2x	0.8 Nm
HT S (contactor control)	Self-tapping screws 3x25 mm	2x	0.8 Nm

Type	Type, size and length	Number	Tightening torque
HT D (direct control)	Self-tapping screws 3.5x25 mm	4x	0.8 Nm
HT S (contactor control)	Self-tapping screws 3.5x25 mm	4x	0.8 Nm

Type	Type, size and length	Number	Tightening torque
HT D (direct control)	Self-tapping screws 2.5x41.7 mm	4x per switch block	0.4 Nm
HT S (contactor control)	Self-tapping screws 2.5x28 mm	2x per button/rotary switch	0.2 Nm

Type	Type, size and length	Number	Tightening torque
HT D (direct control)	Self-tapping screws 3x15 mm	2x	0.55 Nm
HT S (contactor control)	Self-tapping screws 3x15 mm	2x	0.55 Nm

Type	Type, size and length	Number	Tightening torque
HT D (direct control)	Clamping screws	2x	0.9 Nm
HT S (contactor control)	Clamping screws	2x	0.9 Nm