Specification and application of bolts according to the EN ISO 4016 standard
The international standard EN ISO 4016 regulates the technical parameters of hexagon bolts with incomplete thread in the metric size range from M5 to M64. This fastener belongs to product grade C, which determines the permissible manufacturing tolerances and operational specifics in loaded metal structures. Products supplied by EV Group China fully comply with the established geometries and limit deviations, ensuring the reliability of connections in mechanical engineering and construction.
If it is necessary to select parameters outside the scope of this regulation, EV Group China specialists recommend using profile ISO standards, including ISO 724, 888, 898-1, and 965-1, to ensure the compatibility of fastening assemblies.
Technical characteristics and performance standards
| Material | Steel |
| General requirements | ISO 8992 |
| Thread tolerance class | 8g (ISO 724, ISO 965-1 standards) |
| Mechanical properties (property class) | d≤39 mm: 4.6, 4.8 (according to ISO 898-1); d>39 mm: by individual agreement |
| Tolerances (product grade) | C (according to ISO 4759-1) |
| Surface finish | Electroplated (ISO 4042), zinc flake coating (ISO 10683). Additional types of treatment are available upon customer request. |
| Testing methods | ISO 3269 |