A home owner from Pelham, AL says:
December 1, 2013
V shaped patio door installed new construction 1992 no manufacture's marks visible on the door. Stripping is 1/16 of inch thick. Total width is 13/16" and tap that inserts in a groove is 5/16".
Tom from SWISCO responded:
December 2, 2013
This looks a lot like our 58-056. Give it a look and see if you agree.