Hi, Dave. We have a store that does nothing but window and door work about 5 miles from us. They have a lot of the unusual aluminum extrusions, plastic corners, special fastners and the like for screens and storm doors. Check your phone book. No hardware or home center can compare to a place that specializes, both in parts and knowledge. I take them glass and screen repair work because they are better at it than I am since they do it all the time. I can and have done this kind of work, but after you buy special tools, it comes out the same. And we have had 4 kids and numerous dogs and cats over the years.