The Tolsen 54162 is a self-drilling screw designed for the assembly of metal components, profiles, and thin sheet structures. These fasteners feature a semi-spherical washer head and a specialized tip that allows you to install them without the need for pre-drilling, which significantly speeds up your workflow during construction or repair tasks. Each screw has a diameter of 4.2 mm and a length of 16 mm, providing a secure hold in thin metal materials. The zincated finish protects the hardware against corrosion, making these screws suitable for both indoor environments and outdoor areas with moderate humidity. This pack contains 500 pieces, offering a substantial supply for larger projects involving metal framing or cladding.