Gerard Daniels carries a diverse selection of screws with and without washers in numerous sizes, lengths, and materials. These sheet metal screws are used in the installation process of mechanical insulation applications, for example in metal jacketing. We offer screws in the following alloys: SS-304, SS-410, SS-321, and Zinc Coated. These screws come in two primary point styles: Self-Drilling and Self-Tapping. We package our screws in quantities of 1000 per bag for easy distribution. Gerard Daniel offers the ability to use a washer with any screw we produce. The option to have extra security to keep a screw from loosening is always important. A washer is able to be used on any screw, whether it be self-tapping or self-drilling.