About Screw Quiz Quiz

Question Number 1 what is screw? A. A screw, or bolt, is a type of fastener characterized by a helical ridge, known as an external thread or just thread, wrapped around a cylinder. B. Often screws have a head, which is a specially formed section on one end of the screw that allows it to be turned, or driven. C. Screws with left-hand threads are used in exceptional cases. D. Common tools for driving screws include screwdrivers and wrenches. E. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. F. all of the above