The standard specifies the requirements for self-drilling tapping screws with a hexagonal head and an integrated flange (stamped washer) . Often referred to as "Tek screws," these fasteners are engineered to drill, tap, and fasten in a single operation, eliminating the need for pre-drilled pilot holes in metal substrates.
While the German DIN standard remains widely used, it has been largely superseded by the international equivalent, . Technical Specifications and Dimensions
Measured from the base of the flange to the top of the hex head.
The dimensions of these screws are critical for selecting the correct driver size and ensuring proper grip. Key metrics include:
