However if you run a tap down the holes, it will clean up the threads and also remove the wax...
I would recommend tapping all holes before putting the bolts in so the threads are good and the bolts can get proper clamp load vs wasting the torque fighting deformed threads and dirt and grime in the threads...
Tapping the holes should be done before putting the bolts in...
Or tap the holes first and then put the bolts in them to keep the wax and undercoat out....
