Paul from SWISCO responded:
November 7, 2016
Our 95-169 Andersen corner key is specifically meant for the Andersen Narroline window. The 3/4" X 7/16" is the cross section size of the screen frame. I believe you have Andersen 200 series tilt in window. Does your screens have a screen latch like the 70-191? If so, you corner key is not available. They simply do not make it anymore. Andersen recommends that you to buy a new complete screen.
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