| OK, so we all know our "slotted" from our "Phillips" from our "Posi-drive" when it comes to screws... or do we? I've long prided myself on my knowledge of the difference between a Phillips and a Posi-drive but have stood corrected. Turns out that there's and aweful lot more to screws than I thought! Don't you think it's time you could tell when a screw is not a screw? |