Thank you SO much for this opportunity!
I need to replace the screen clips in a few of my windows but can't find a manufacturer. I DID find "Wilkes" but none of the stickers are totally legible. My home was built in 2000. These clips work on a "nail inserted into a spring" principle. The nail is what goes through the clip into the screen frame and pivots to hold and release the clip to the window frame. I don't know if this will help, but the warning sticker on each window has a number A-X7164 on it.
I have attached photos and again, thank you SO much!! Alan