2-1/2″ X 2-1/2″ X 3/4″ corner brace. Replacement for Part #1693
3″ X 3″ X 7/8″ corner brace
1″ X 1″ X 1″ corner brace
1-7/8″ X 5/8″ X 5/8″ corner brace
3-1/2″ X 3/4″ X 3/4″ corner brace.