Diameter: #10 Length: 2 Material: Brass Head Style: Flat (Slotted) Thread Size: 32 (Fine) Thread Length: Full Type: Machine Screw A machine screw also called a stove bolt is generally a smaller fastener threaded the entire length of its shank. Machine screws are used in fastening nearly all types of hard materials. Especially useful in metal-to-metal or where heavy duty fastening is required. Commonly used with flat or lockwashers.