A DIN 960 Metric Fine Bolt is a type of bolt that has a hexagonal head and a full thread with a fine pitch. The DIN 960 standard specifies the dimensions, tolerances, and material requirements for these bolts, ensuring consistency and quality. Fine thread bolts are less likely to loosen due to vibration because of their shallow pitch. They also require less torque to achieve the same bolt preload as coarse thread bolts. This makes them a good choice for machine parts, hydraulic systems, transmission parts, electronics, and other applications where precision and accuracy are important.