These brackets will be assembled with screws, #10-32-UNF x 3/4" long Phillips round head zinc plated, #10 medium spring lock washer zinc, #10 flat washer zinc, and #10-32-UNF cage nut zinc, three for each bracket, two brackets for each door.

Photos compliments of
Bob Krzywicki in Arlington, VA, USA,
and Jim Cheatham in Amelia, VA, USA.
Dimensions compliments of Dave Adams in the UK.
CAD drawing by Barney Gaylord.