Important note: The DIN 2615 standard has been officially declared obsolete and fully replaced by the international regulation DIN EN 14399-8:2019-06. When designing metal structure assemblies, EV Group China specialists recommend using the current regulatory documentation.
Technical specifications and field of application
High-strength bolts complying with the DIN 7999 standard are equipped with a hexagon head featuring an enlarged wrench size. This design feature provides an increased contact area between the tool and the fastener, which is critical when it is necessary to apply high tightening torques in sensitive assembly units.
Products supplied by EV Group China are intended for use in load-bearing metal structures subjected to significant static and dynamic loads. The use of these fasteners guarantees the stability of connections in industrial construction, bridge building, and the erection of high-rise building frames.
Advantages of using DIN 7999 bolts from EV Group China:
- Ensuring the required preload in high-strength bolted connections.
- High resistance to vibration and cyclic loads.
- Compliance with strict geometric tolerances, ensuring a tight fit in holes.