Do you sell these screen connectors?

Hello,

Unforutnately, we no longer carry an overlap screen corner with a pull tab like yours. You'll need to use the 70-128 "screen in type" pull tab.

Detail of 70-128

As for the corner key, could you confirm if the thickness of your frame opening measures 5/16" or was the one you already tried the wrong size? If so, we'll need you to write out the exact thickness of your screen to narrow down your options. thank you!