1) The drawing 6S3 calls out an AN5-5A bolt, with washers and lock nut to attach the rear wing spar to the fuselage. This bolt does not allow sufficient threads to show beyond the nut, so AN5-6A bolts were used. 2) Positioned wing so the tolerances in drawing 6S3 were established, and the bolt capotured sufficient material in the rear wing spar attach point. 3) Drilled pilot holes, and opened to 5/16" inches. 4) Installed bolts, washers, and nuts. 5) Torqued to the level shown in the table of tolerances.
