[bigjae1976]

The important spec is the stud being a grade 10.9. Bullet nose or hex head...they are mostly the same.

The problem with studs, as I'm finding out here in the north, is keeping the wheel hub clean is more of a challenge. Just like the stud, it is important to keep the contact surfaces clean (back of the wheel, rotor hat face and hub lip) to make sure you keep the wheel vibration free. BMW's procedure specifies this. No stud will last long if there is vibration through the wheel.

I wouldn't necessarily blame wheel studs as the reason for a wheel falling off. More commonly it is the fault of the buffoon who installed your wheel. They didn't seat the wheel correctly.