There is a strip of ally that covers the gap between the flap and the wing that is held on by a series of small screws. I have no idea what the strip is called but I'm sure it has a name.

Anyway in recent times the fixing screws seem to be having more and more trouble staying there despite locktite and now being part of my preflight check. Several have had to be replaced with a larger size as the screw holes are clearly working out.

Is anyone else is having trouble with these screws falling out and better yet has anyone has found a solution?