fly mesh problem

[Michael T]

Hello to everybody. firstly I am from Australia. My problem is, is that I made a security screen for a window and I am using another mans solution with the actual fly screen attaching. He is using some sheetmetal folded at 90 degrees then welded to the framimg of the security screen. It looks ugly because of the welds and i can weld. There must be some framing that I can use that has a slot in it so I can use it to bind the fly sreen too. Any ideas will be aprreciated.

[MRobb]

I'm sure someone here can help. Maybe a few pics to clarify how things are laid out?