There is no metal to be installed.In my prints or in the box,it calls for a wood joiner,which I installed.Yes Im sure if I glassed the wing together It would of held,but why spend all that time and money buying mat,white covering,then red.yellow and blue trim tape.This was supposed to be an ARF not a kit.There are at lest 6 other super stars in my club none have had to glass theirs.The plane was built exactly to instructions,but thanks for the input.I took it back to the place of purchase and they agreed it was falty workmanship at the factory.They also said that Hobbieco was good to work with .I see monday.