Firstly you need to pray that the bolts don't round off, as they tend to be made of marshmallows.
Make sure you thoroughly clean the flat face of the wheel that the disc sits on, including any crud that's built up around the inner circle, it basically needs to be spotless to avoid any unevenness.
Use a torque wrench to do the bolts back up in a criss cross fashion.
Don't use copper grease on the bolts either, I would either dip them in oil or use a tiny dot of Loctite, so that torque settings stay true.