DIN 7985, a German standard, outlines the specifications for cross-recessed countersunk screws with type H or type Z cross-section. These screws are designed for use in high-stress applications, such as construction, machinery, and automotive industries. The standard defines the dimensions, tolerances, and material requirements for these screws, ensuring consistency and reliability in their performance. Notably, DIN 7985 also provides guidelines for the screw's thread, head, and shank, as well as the surface finish and corrosion resistance. By adhering to these standards, manufacturers can ensure the quality and interoperability of their products, ultimately enhancing the safety and efficiency of the systems they are used in.