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The HILTI Drywall Screw portfolio includes a variety of screws designed for various board fastening applications. The portfolio features both stitch tip screws and drill-tip screws. The corrosion protection options for the screws include black phosphate, galvanic zinc-plated, and electro-coated (CRC) carbon steel screws. Typical applications for these drywall screws include fastening boards to wood or metal substructures. The representative product is the Drywall screw 6x1-1/4 inch PBH S which is a drill-tip screw with black phosphate coating.