You just gotta have these things to put the wings on temporarily (do not harm to the reamed spars holes) and to put the wings on for the final assembly. Go to a big hardware store (Home Depot Aviation does not have them) and buy some 6” x 7/16 &1/4” hex bolts. Cut off the threads, and turn or grind a rounded end. Buff them up with the Scotchbrite wheel and you are done. Make sure they have an easy slide through fit on the wing spars and you now have what you need for setting the incidence on the plane. You can also use these to line the spar holes up for final installation of the wing for the NAS close tolerance bolts.
