Guide Values For Tightening Torques - PB Swiss Tools DigiTorque Instructions For Use Manual

SI SI
Nm ft·lbf Nm
9. Once the upper value has been set correctly, hold down the display
switch for longer than 8 seconds to return from Teach Mode to
Normal Mode. This saves the values entered.
Please note: If the hold time in Teach Mode is longer than more
than 15 resp. 180 seconds, the display automatically returns
to Normal Mode. No values are then saved and the original setting
remains unchanged.
CaH 4.98
8 sec.
8 Sek.
SI SI
Nm ft·lbf Nm
gespeichert
96
SI
ft·lbf Nm ft·lbf
up down
ft·lbf
saved
Guide values for tightening torques M for metric set screws
Theoretically the tightening torques result in a clamping force, which
corresponds to 90% of the tensile yield strength of the screws. The
calculation is made on the assumption that the friction coefficient for
thread and headset is identical.
The tables are only guide values and are to be applied if there are
no details available from the manufacturer of the screws or connecting
elements. A detailed screw calculation cannot be replaced by the
tables.
Standard metric thread
μ
Average coefficient of friction for thread and head set
M
Tightening torque of the screw
97