HD3538 Drywall Screws - Black\n- Drywall screws made from steel, finished in chemical black.- Chemical Black finish that offers better corrosion resistance than the commonly produced black oxide.- Coarse threads to secure gypsum board to studs.- Package included 200 premium screws.- Ideal for drywall, wood, and other materials.\nChemical Black finish that offers better corrosion resistance than the commonly produced black oxide. Coarse threads to secure gypsum board to studs. The package included 200 premium screws. Ideal for drywall, wood, and other materials.\nFeatures:\n- Steel C1022, Case hardened - Finished: chemical black.