ls1 conversion help

[69projectKAOS]

i recently broke two studs causing my wheel to come off and destroy my fender. upon inspection of the after math i noticed that my studs that i was supplied with in my conversion kit are very small looking inside the holes of my rotors. while the rotor is on the car you can spin the rotor a little before it touched the studs causing a lot of play in there. i think when i would brake while coming to a stop the rotor would stop but the hub would keep going causing the two studs to snap. i know that the holes in the rotor should just fit around the wheel studs but mine definitely don't, is there anything i can do to keep them centered? or should i get new rotors that have smaller holes? what should i do?