Originally Posted by
UniChris
...But it also depends on things like if the threads have been lubricated with a grease or anti-seize...
Exactly. Lubrication has a huge effect on reducing the torque to achieve desired bolt tension. If you don't grease/oil/threadlocker those bolts you can be 1/3 or more under tensioned as typical manufacturing convention is torque values given are for lubed bolts.