like greg said, tape works for temo holding in place while building. but for after the build, i ise a combo of 440 screws and blond nuts to hold them together. the blind nuts are glued to small pieces of lite ply which are also epoxied to the fuse on the inside. now if u have to remove the mechs for maintenance, you just undo the screws. there should be enough screws around the fuselage to give ample support. hope this helps