Traco window screen retainer clips
We actually used to carry this exact part at one time, but it's no longer made. Fortunately, I believe you can use our 70-180 as a substitute, along with drilling a hole for our 33-020 screw.
The 70-180 would need to be secured on the face of the door with a 33-020 screw. The end leg of the clip has a 1/2" reach and should press up against the screen or glass panel in the door holding it in place. I would suggest installing four or five on each side and maybe two at the top.
The original parts are still discontinued, yes. Odds are these won't be made again.
You can place an order for the recommended alternative directly from our site at your convenience. I've linked to their respective store pages in my previous response.