Hooks are normally attached to the structure supporting the drop ceiling (normally the steal beams, not the wire or threaded rod supporing the grid), then cabling run through them. If the drop ceiling ...
Dear Ken: I have one of those plant hanger swag hooks in my ceiling. How can I make it disappear? - Diane Answer: Unscrew the hook. If the threaded rod stays in the ceiling, you might be able to grab ...