Drill 3/16" D02--03 Windsheld Bow, temporarily bolt through F13-02 L&R Upper Longeron. Drill 5/64", 1/8", 5/32", 3/16" D02-01 Windshield & D02-03 Windshield Bow. Dis-assemble same, deburr D02-03, counter sink D02-01 Windshield for counter sunk washers. Drill 3/16" center hole in D02-05 Bow Strap & deburr. I drilled all the way through the windshield bow and will use nylock nuts on the screws instead of tapping the holes in the bow.