A home owner from Cincinnati OH says:
March 17, 2016
I need to purchase multiple new pivot locks for my vinyl windows. They are single hung windows manufactured by Pennco around 2001. Three pictures of a pivot lock are attached and I included a copy of a lock showing the Pennco name. Hopefully you can direct me to the appropriate part.
Paul from SWISCO responded:
March 21, 2016
Thanks for posting! This looks like our 15-208 pivot shoe. Carefully compare our pictures and dimensions to your own hardware to confirm.