Attention: The DIN 6922 standard is considered obsolete and has been officially replaced by the international standard EN 1665:1998-02.
Technical specifications and scope of application
Hexagon flange bolts with a transition shank, according to DIN 6922 specifications, are high-load fasteners. The items are produced with partial metric thread in a nominal diameter range from M5 to M20 and shank lengths from 30 to 200 mm. The design of the flange part can vary: both models with a flat bearing surface and versions with serrations (locking teeth) to prevent loosening are available.
The products supplied by EV Group China are intended for critical assemblies in mechanical engineering, construction, and instrumentation, where secure fastening of parts is required without the use of additional washers.
Material execution and strength classes
To ensure operational reliability in various climatic conditions and load regimes, the bolts are manufactured from carbon steels with regulated strength classes:
| Parameter | Characteristics |
|---|---|
| Strength classes | 8.8, 10.9, 12.9 |
| Coating types | Electro-galvanizing (corrosion protection) |
| Thread type | Metric, partial |