1″ X 1″ X 1″ corner brace
3″ X 3″ X 7/8″ corner brace w/ screw holes. Attach with #8 PH screws
2-1/2″ X 2-1/2″ X 3/4″ corner brace with no alignment tabs.
3-1/2″ X 3/4″ X 3/4″ corner brace. Screw in place using #8 panhead screws ( not supplied )
3/4″ X 3/4″ X 3/8″ corner brace.