Monster Fastener Zinc Plated Class 4.8 Steel Coarse Thread Phillips Flat Head Machine Screws

Diameter: 4mmLength: 20mmMaterial: SteelFinish: ZincHead Style: Flat (Phillips)Thread Size: 0.7mm (Coarse)Thread Length: FullHardness: Class 4.8Type: Machine ScrewSpecifications: DIN 965 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.