DIN 7505 is a standard for self-tapping screws with thread forming, which are used to join two or more materials, typically metal sheets or plates. These screws have a special design that allows them to form their own thread in the material, eliminating the need for pre-drilled holes or pre-tapped threads.
The is far more than a technical document—it is an engineering toolkit for creating reliable, chip-free, high-strength threads in metal components. Whether you are designing an aluminum gearbox housing or repairing a vintage German machine, understanding this standard ensures you select the correct pilot hole diameter, torque limits, and screw material. din 7505 standard pdf
: The standard typically covers cross-recess (Phillips) and Pozidriv drives. DIN 7505 is a standard for self-tapping screws