Thread cutting screws are a type of self-tapping screw that create new threads in existing holes in metal. They are often used as fasteners in items that need periodic maintenance, such as machinery or equipment. Thread cutting screws do not generate as much stress on the material as thread forming screws, which deform the material to create threads. Thread cutting screws have a cutting edge and a chip cavity that allow them to remove bits of the material they are driven into.
