The prevailing torque type hexagon nut with a non-metallic insert, compliant with DIN 985 standards, is designed for robust fastening applications across various industrial sectors. Constructed from hardened carbon steel, these nuts are zinc plated with a yellow passivation finish, providing basic indoor corrosion protection suitable for environments with minimal exposure to moisture. The non-metallic insert enhances the nut's locking capability, ensuring a secure fit that resists loosening under vibration and dynamic loads. These nuts feature a standard hexagon head, allowing for compatibility with common hexagon drives, and are designed with a metric fine thread, ensuring precise alignment and engagement with corresponding bolts. The right-hand thread direction is standard for most fastening applications, making these nuts versatile for a wide range of uses, from machinery assembly to structural connections. In terms of performance, the nuts meet relevant industry standards, including ISO 10512 and NF E25-412, ensuring reliability and consistency in quality. They are suitable for use in various applications, including automotive, construction, and machinery, where secure fastening is critical. The combination of durable materials and effective design makes these hexagon nuts an essential component for engineers and maintenance professionals seeking dependable fastening solutions in their projects.