Varies by screw diameter; for example, a 4.8mm diameter screw can typically drill through steel up to 3–4mm thick. Common Dimensions Description Nominal Diameters Range from ST 2.9 to ST 6.3. Head Width (Across Flats)
DIN 7504 K standard specifies the dimensions, mechanical requirements, and test methods for hexagon head self-drilling screws din 7504 k standard pdf
While the German DIN standard remains widely used, it has been largely superseded by the international equivalent, . Technical Specifications and Dimensions Varies by screw diameter; for example, a 4
: The most significant feature is the drill-bit-shaped point. This allows the screw to drill, tap, and fasten in one step, eliminating the need for pre-drilling and reducing installation time. Varies by screw diameter