I know the thread directions for center locks are meant to be left handed on the right and right handed on the left.
What I don't know is why. Initially I thought it was to do with the torque under braking or acceleration, but as they are not different front to rear this, from my logic cannot be the case. The only explanation I have heard is that it has something to do with the thread clearance between the nut and the spindle. As the wheel rotates, because the spindle is slightly smaller, with each rotation it rotates slightly more than the nut- think hula hoop. This eventually leads to the nut loosening off if it is threaded in the wrong direction.
I am still not 100% sold with this explanation so was wondering what reasoning other people have used to determine the thread direction for their center locks