DIN 4xxx
The DIN 4xxx series includes various fasteners and standard machine parts that are widely used in mechanical engineering, structural engineering, and industrial installations. These standards were developed in accordance with the guidelines of the Deutsches Institut für Normung (DIN) and ensure uniform dimensions, reliable quality, and safe assembly of technical components worldwide. The DIN 4xxx series includes, among other things, various types of nuts, washers, locking devices, and other standard parts that are essential for strong connections. View all products at Hetraco. With our ISO 9001 and 14001 certifications, you are assured of quality.
DIN 4xxx fasteners for industrial applications
Components from this series of standards are used to connect, secure, and support structures and mechanical systems. Thanks to their standardized dimensions and tolerances, DIN 4xxx components are easily interchangeable and widely applicable across a variety of industries. Some of the standards in this series include:
- DIN 433: Washers for small screw diameters
- DIN 434: Square washers for steel structures
- DIN 439: Low-profile hex nuts
- DIN 444: Threaded eye bolts
Standardized DIN parts
Standardized DIN parts
In industries such as offshore, petrochemicals, steel construction, and maritime engineering, it is important that fasteners meet high quality and safety standards. DIN 4xxx components are manufactured according to established standards and precise specifications. As a result, components fit together perfectly, creating a reliable connection that can withstand stress, wear, and long-term use. The use of standardized DIN 4xxx components also offers advantages in terms of maintenance and inventory management. Parts can be replaced quickly and are easy to integrate into existing systems and installations.
View the DIN 4xxx series
Hetraco can manufacture an extensive range of DIN 4xxx components for a wide variety of industrial applications. Thanks to our extensive experience in technical industries, we can work with you to determine the most suitable materials, designs, and product specifications. Please contact us for more information about the available DIN 4xxx standards and applications.
| Standard | Description |
|---|---|
| DIN 404 | Slotted cylinder head screw |
| DIN 417 | Adjusting screw with slot and tap |
| DIN 427 | Adjusting screw with shaft and serrated edge |
| DIN 431 | Pipe nut |
| DIN 433 | Washer for Cylinder Screws |
| DIN 436 | Square Washer (Wooden Structures) |
| DIN 438 | Adjusting screw with crimped end |
| DIN 439 | Low-profile hex nut |
| DIN 440R | Flat washer for use in wood structures |
| DIN 440V | Flat washer with a square hole |
| DIN 444 | Clamp screw |
| DIN 464 | High-profile slotted screw |
| DIN 465 | High-profile serrated screw with a saw-tooth cut |
| DIN 466 | High-profile nut |
| DIN 467 | Flange nut, low |
| DIN 478 | Square bolt with collar |
| DIN 479 | Square bolt with a short shank |
| DIN 480 | Square bolt with tap |