A DIN 931 Hex Bolt is a type of bolt that has a hexagonal head and partial thread. The DIN 931 standard specifies the dimensions, tolerances, and material requirements for these bolts, ensuring consistency and quality. Partial thread bolts are often used in applications where the threads need to engage with a nut or other threaded component at a specific distance from the end of the bolt. This can be useful in situations where the bolt needs to pass through a hole or clearance before making contact with the threaded component. Hex bolts DIN 931 are commonly used in construction, machinery, and automotive components. The DIN 931 standard is typical used for Height Tensile (>8.8) and Stainless Steel Bolts (A2 & A4).