It holds the screen into the window frame. It's plastic and it pops in but mine are all broke
Bob from SWISCO responded:
May 26, 2021
See our 70-211 Screen Turn Clip. Look it over and let me know if you think this matches what you need.
A handy person from Rocky River Ohio says:
January 25, 2023
Good evening, would this clip work to replace this type of clip? Hopefully you can make it out. Thank you, Fred
Tom from SWISCO responded:
January 27, 2023
Your photos show two types of clips. I don't think the 70-211 would work in either case, though. Something like our 70-026 may be better, but look it over and see what you think.