The standard requires the screw to withstand a specific twist angle without breaking, ensuring it can handle the torque applied during the drilling process. Applications
The defining feature of the DIN 7504 K screw is its thread geometry, which differs significantly from standard metric screws (DIN ISO 261/262) or sheet metal screws (DIN 7971). Key geometric parameters include:
: It provides exact measurements for thread pitch, head height, and across-flats dimensions, ensuring compatibility with standard sockets and drivers.






