The main two things are, getting enough length of threads to get at last the same number of threads as the diameter of the threaded part...also getting the conical or sperical part of the bolt to be the correct shape in the wheel. Check at least twice then check again.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.