Especially useful in metal-to-metal or where heavy duty fastening is required. Machine screws are used in fastening nearly all types of hard materials.#6-32 x 2-1/2 in Phillips Pan Machine Screw, Zinc Plated Steel, 20 PK Commonly used with flat or lockwashers..
Sheet Metal Screw, #8 x 1 in, Chrometint Steel Oval Head Phillips Drive, 25 PK Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.
5/16"-18 x 1-1/4 in Flat Machine Screw, Zinc Plated Steel, 6 PK Commonly used with flat or lockwashers. Especially useful in metal-to-metal or where heavy duty fastening is required..