The DIN 931 and ISO 4014 standards outline the specifications for hexagon head bolts with partial threads. These standards provide detailed guidelines for the dimensions, materials, and mechanical properties of these bolts, ensuring their reliability and compatibility with other components. By adhering to these standards, manufacturers can produce bolts that meet the necessary strength and performance requirements for a wide range of applications. With a focus on precision and consistency, the DIN 931 and ISO 4014 standards play a crucial role in promoting safety and reliability in engineering and construction projects.