Dave Sr. from SWISCO responded:
July 28, 2015
Hello, Peter. For a 3/4" wide frame and 3/16" hole in the window frame, I would suggest something like our 75-009. The step down drill bit for this pin is our 75-032, which is no longer being mass produced. You can use a 1/8" drill bit to drill a pilot hole and then a 11/64" drill bit for the outside hole, so the pin head will go inside the screen frame.
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