Latch for window screen

Hi, I need to get help with this latch, which is from the aluminum screen for an aluminum frame slider window that was installed in 1962. The part of the latch that attaches to the screen and pivots to go over the screw is approx 1 inch long.
There are two things I need to fix. First, I am missing the partner to this latch, for the other side of the screen. Second, the tiny stem that holds this latch (and its partner) to the frame of the screen is broken, so I assume I need to replace this latch too, and get instructions on how to attach both latches to the screen frame.
Thanks in advance for your help.
Susan

Thank you for the suggestion. However, it looks like I need something shaped more like part 70?208, which has a notch to hook around the peg in the frame of the screen.
New question:
I'm also looking for a handle assembly for the screens for my sliding doors (see attached photos), also from around 1962. I don't need to have a locking mechanism, just an inner and outer handle.
Thanks again

What I should have said about the screen clip is that it needs the notch to hook around the screw, not the peg.