Din 7504 K Standard Pdf Link -

The total thickness of the hexagonal head, including the flange.

The German Institute for Standardization website. din 7504 k standard pdf

DIN 7504 K specifies requirements for hexagon head self-drilling screws with a tapping screw thread and a flange (integral washer) The total thickness of the hexagonal head, including

While DIN 7504 has been officially replaced by the ISO 15480 standard, the DIN 7504 K designation is still widely used in industrial catalogs and engineering specifications throughout Europe and globally. and functional performance of drilling screws.

The Deutsches Institut für Normung (DIN) established the DIN 7504 standard to regulate the mechanical properties, dimensions, tolerances, and functional performance of drilling screws.