Wont there be a problem once the frame is mounted to the wing though? Once in place, the wing has less than 1/4" forward or backward space in order to slide it out of these pivots. The thickness of those pivots look to be about 1/2" thick, plus the extra thread sticking out to apply the nut. You would need at least a 3/4" gap between the leading edge of the batwing and the surface it lines up with.