Originally Posted by
HillRider
The torque you use is dependent on the steerer material and stem material not the bolt size since the real consideration is how tight it has to be not to slip and no more.
That's kind of... half right, and half wrong.
The
clamping force depends on material, but
the torque required to produce a given clamping force very much depends on both the diameter and thread pitch of the screw.
But it also depends on things like if the threads have been lubricated with a grease or anti-seize...