Building Materials

3.5*30 Gypsum Screws

This product consists of high-quality black phosphated fine-thread drywall screws (gypsum screws). Measuring 3.5mm in diameter by 40mm in length, they feature a bugle head with a Phillips cross recess. The black phosphate finish offers reliable corrosion resistance and a clean look. The fine threading is explicitly engineered for securing drywall panels, plasterboards, and gypsum boards tightly onto light-gauge steel framing studs and iron sheet structures