Hex Self Drilling Screw – Fast, Efficient, and Reliable Fixing Hex Self Drilling Screws are high-performance fasteners with a hexagonal head designed to drill and tap their own hole in metal or other hard materials without the need for pre-drilling. This makes installation faster, easier, and more efficient in industrial and construction applications. Manufactured from high-quality carbon steel, stainless steel (SS 304 / SS 316), or alloy steel, these screws offer excellent strength, corrosion resistance, and durability. They are widely used in metal roofing, cladding, HVAC systems, machinery assemblies, and structural installations.