Screws are 2" but don't tighten (threads on back handle seem to be stripped). What are screw threads? 10-32 fine? I can't find them at a hardware store.
Name on brass handle: "Sash Controls Ferndale MI"
Patent # on brass handle: see photo.
Handles are on LEFT side of sliding door. Door closes to left and opens to the right.
I also have a patio door that has Handles on RIGHT side with the same handles, except they have the opposite configuration. 2" screws tighten OK.
Brass inside Door handle is 8 1/2" long and 1" wide.
I believe that I need 1. A new back handle that has good threads2. Two new 2" machine screws