I installed the fasteners for the root ribs. I had to add washers to correct the grip length. The fasteners all seemed to long but the plans call for a washer on each side. I had to add a third washer to ensure that the nut would not expose more than three threads on each bolt.
Welcome to my builders log for Sonex S/N 767. It won't be as big as a real 767 but if you scale the speed I bet it will be almost as fast
Dave's Sonex Builders Log 