QB 9A. Setting up for initial wing attachment. My problem is that the hardware store bolts do not fit through the F-904 plates. I know the bolts are fine as they easily pass through the wing spar. This is both the 1/4" and the 7/16" bolts. Has anyone else had this issue. What is best way to take a bit off the holes in the F-904s without damaging the holes in the center section.