No, shouldn't be a problem. Mount them and have fun.
On the front rim, I hope there was no coating where the wheel bearings go. If there is, you have a problem. Also, check the threads where the rotors mount. If the threads have any coating on them, chase the threads with a tap before you re-install the rotors.
On the front rim, I hope there was no coating where the wheel bearings go. If there is, you have a problem. Also, check the threads where the rotors mount. If the threads have any coating on them, chase the threads with a tap before you re-install the rotors.