plastic tabs that clip the screen to the window frame

Several of the clear plastic tabs (each has a hole with a tiny screw in it so that it can be attached to the bottom of the screen) on our Patriot window screens have broken. These plastic tabs clamp the screen to the window to hold it in. How can I obtain replacements?

Our home is a Ryan home (Sumner model) that we built through the Ryan Owner/Builder program.

You asked me to send pictures of the screen clips in question. Here is one showing how they are breaking. Also attached is a picture of one attached to the frame of a screen.
Thanks,
Jane

Your 70-208 looks like it will work. I ordered a few along with the screws and will give them a try.
Thanks,
Jane