I am afraid I am not 100% familiar with PGT hardware. Your parts seem to be different than other manufacturers we have worked with, which leads me to think these parts may be exclusive and only able to be provided by them. You may want to start by trying to reaching out to PGT directly for assistance. The only suggestion I can provide for you in the meantime, would be to install the screws into the patio screen door using small screws. As for that clip, if you believe you will still need it you could try using a piece of aluminum angle like our 95-010. Cut it to size to fit your opening and use the screws to secure it at each end.
I am sorry we could not be of more help with this. Best of luck and thank you for considering us.
Unfortunately, we do not carry a replacement for this part. I'm not too familiar with PGT hardware. They seem to be different from other window manufactures. I recommend trying to contact PGT directly to see if they can supply it.
If not, my suggestion would be to install screws into the patio screen door corner using small screws. As for that clip if you think you still need it you could try using a piece of aluminum angle like the 95-010. You can cut it to size to fit your opening and use screws to secure it at each end.
I can't guarantee if this will work, but it's just an idea.
