DIN 961 refers to a specific standard within the realm of fastener manufacturing, particularly focusing on metric fine thread hexagon head bolts with a small thread pitch. This standard delineates crucial aspects such as dimensions, tolerances, material strength, and surface finishes required for these types of bolts, ensuring uniformity and reliability across products adhering to this specification. The DIN 961 standard is instrumental for engineers and manufacturers in various industries, including automotive, aerospace, and construction, providing a guideline for selecting and using the appropriate fasteners for securing components under conditions where precision and strength are paramount. By adhering to this standard, manufacturers can guarantee that their products are compatible with a wide range of equipment and are capable of withstanding the demands of their intended applications, thereby ensuring safety, efficiency, and longevity of the assembled products.