Bi-Metal Hex Head Light Steel screws are designed for fast and secure fixing into light gauge steel sections without the need for pre-drilling. Commonly used in roofing, cladding, steel framing, liner panels, and general metal-to-metal construction applications, these self-drilling screws provide a strong and reliable connection while helping speed up installation on site. The bi-metal construction combines the strength of hardened carbon steel with the corrosion resistance of stainless steel, making them ideal for both internal and external applications where long-term durability and weather resistance are important.