Stove bolts are also known as machine screws. These screws are used to fasten metal parts together that are going into a tapped hole or through a hole and being held by a nut. A nut of the same finish and threading for proper fit is included. Fasten with a screwdriver to reduce the risk of over-tightening and to protect the screw and fastened material. To obtain the fastener length, measure from the underside of the head, to the tip of the screw. Made of steel, these screws are zinc-plated for moderate corrosion protection.