The retaining flat is super fragile. And I doubt there’s any practical way to replace it. Don’t know if the connector still works ok without the flap.
I’m pretty certain this screw is a tiny bit larger diameter than the others — I mixed it up and tried to use it elsewhere, and it wouldn’t fit, so IO swapped in another and set this one aside. Later when I got to this point, other screws were too small and wouldn’t grab. So I tried the one I had set aside earlier, and it fit perfectly. That might explain why this one seemed “stripped” to another commentator.
There’s one more connect next to the SSD socket, that I can’t find mentioned, and is hard to disconnect.