Also consider "Thread Engagement" ie the length of threads actually engaged.
Some say... that the minimum thread engagement length should be the same as the diameter of the bolt. Theories vary on this, so it is an important issue to find out.:nenau
Eg a 12mm ie M12 bolt should have a minimum of 12 mm of threads, so if the thread pitch is 1.25 mm then there should be a minimum of....
12 / 1.25 which is 9.6, which means nearly 10 complete rotations of the wheel nut, once the thread starts to engage. So Check your nuts?...
If you have less, then the nut could strip.
Also torque is important, YOU MUST use a torque wrench, standing on a wheel wrench is not scientific enough, as wheel wrenches vary in length, and so does our weight...:doh
Rustic