EN ISO 4032, The international standard for hex head bolts. These bolts are typically used with screws and fasteners and are widely preferred in industrial connections due to their high compression strength. It is the modern and internationally compatible equivalent of the DIN 934 standard. It is used in many critical areas such as structural assemblies, machine equipment, petrochemical plants, automotive systems, and power plants.
ISO 4032, includes hex nuts with metric thread systems and can be produced in various quality classes. The fundamental feature of the standard is that it provides a common production and quality framework for global supply chains.
| Feature | |
| Standard | DIN EN ISO 4032 – Hexagon Nut |
| Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Material Quality | 4, 5, 6, 8, 10, 12, A2, A4 |
| Coating | Electrogalvanized (White/Yellow), Hot-Dip Galvanized (HDG), Nickel, Black Oxide, Geomet |
| Tooth Type | Metric Coarse Thread, Metric Fine Thread (optional) |
| Measurement Range | From M10 to M80 |
| Production Method | Hot Forging, Machining |
| Thread Direction | Right-Hand Thread (standard) / Left-Hand Thread (upon request) |
- Steel construction and building connection systems
- Machine assembly and equipment fastening
- Refinery, petrochemical, and natural gas plants
- Connecting parts in the automotive industry
- Power plants and pipelines
- Flange connection systems and heavy industrial applications
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- ISO 45001:2018 Occupational Health and Safety Management System
- EU Declaration of Conformity (PED) certificate (Compliance with the Pressure Equipment Directive)
- Our production processes, DIN, EN, ISO, and ASTM is fully compliant with the standards
- Upon request EN 10204 3.1 certificate is provided
Both describe hex nuts. Their dimensions and thread profiles are mostly the same, but ISO 4032, meets updated tolerances and international standards.
Both are hexagonal, but ISO 4033 thicker (higher) has a profile and is therefore used in applications requiring higher compression. ISO 4032, on the other hand, has a standard height.
These nuts are required for high strength, corrosion resistance, or standard compliance. refinery, petrochemical, power plants, steel construction, infrastructure, automotive and machinery manufacturing is frequently preferred in their projects.
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