RCU Forums - Quick simple Sprint question?

I am so close to finishing my Sprint I can taste it:D

Unfortunately I hit another very minor snag. I was doing the final set up and went to tighten the set screws that affix the outer wings to the main wing and fuselage and can't for the life of me figure out what size they are as they were not included with the plane (which I received partially completed). There are aluminum hard points of some sort in the main wing / fuselage section but I can't figure out what size they are. A standard 4-40 is way to loose but a fine thread 6/32 is too large. I have tried several other thread/size combinations with no luck and have also made sure the threads were clean (I have the same problem with all six hard points by the way) The first couple of threads of the 6/32 seems like it wants to thread then it stops dead after that. I don't want to force them because I am afraid I will strip the threads then I will be in a world of hurt.

If anyone knows what size those are or what thread pattern I would GREATLY appreciate the heads up?

Thanks again, you guys have always come through for me and I appreciate it.

Anthony