Don't vacume those threads... Get a lint roller & tape (or zip-tie) the handle to a paint pole, broom handle, or large dowel and roll it across the floor. It will pick up the threads, pins (if there aren't too many threads), pet hair, dust bunnies :roll: (uh, so I hear), and anything else down there. You can attach a duster to the other end to reach the ceiling fan & upper corners of your rooms. (short person tip :lol: )