[BAracer]

Torque wrenches are obviously the way to go, but is it really the case that, say, all m2 grub screw need to be tightened to the same torque whatever they are doing on the car, eg tightening an Ali wheel onto an axle or tightening a plastic one?

But in the absence of a torque wrench, in a way it might be preferable for the driver to fail first rather than ending up using the worlds strongest driver and rounding off all your grub screws.