Fastener Express has a selection of zinc dowel screws in a variety of lengths and gauges. These fasteners are pointed on both ends and have threading along the entire shaft. This design allows for hidden joints to be made in woodworking projects without giving up much stability. Many furniture projects make use of dowel screws. They prevent unsightly fastener heads from showing and the tight threading creates a lasting hold. These screws are most often used with pre-drilled holes and cannot be installed with a standard screwdriver.