DIN 6xxx
Fastening components from the DIN 6xxx series are widely used to create strong and reliable connections within machines, structures, and systems. These standards were developed by the Deutsches Institut für Normung (DIN) and include various types of DIN pins, locking pins, and bolts that ensure the secure assembly and stable operation of mechanical components. DIN 6xxx products are used in a wide range of industries, such as mechanical engineering, steel construction, offshore, and the petrochemical industry. Order DIN 6xxx standards from Hetraco. Thanks to our ISO 9001 and 14001 certifications, you are assured of quality and reliability.

Reliable DIN Connections for Industrial Applications
These DIN-standardized parts are used to connect structural elements, precisely position components, or provide additional security for moving parts to prevent them from coming loose due to vibration or stress. Common types within the DIN 6xxx series include:
- DIN 608: Countersunk-head bolts with a small square drive
- DIN 609: Hexagon socket head cap screws with long shank
Consistent quality and precise fit
Components conforming to DIN 6xxx are manufactured according to established standards and dimensional requirements. As a result, components fit together well, creating a reliable connection with minimal play. This is important in installations that are used intensively or are under continuous load. Thread rolling also contributes to a strong and wear-resistant thread, making connections more resistant to high loads. The use of standardized fasteners simplifies maintenance and allows parts to be replaced quickly when necessary.
For technical managers and procurement professionals in the industry, quality, delivery reliability, and safety are of the utmost importance. Especially in sectors such as equipment manufacturing, energy, offshore, and heavy industry, fastening solutions must immediately meet the appropriate specifications and standards. With DIN 6xxx products, such as DIN pins and DIN locking pins, you’re choosing reliable components suitable for demanding applications. In this context, fast availability, expert advice, and a supplier who thinks along with you are just as important as the product itself.
Discover the DIN 6xxx series
At Hetraco, we support industrial organizations with a wide range of DIN 6xxx fasteners for applications where reliability and continuity are key. Thanks to our technical expertise and experience across various industries, we actively work with you to find the right solution for your application. Because we handle production in-house, we can respond quickly. Please contact us.
| Standard | Description |
|---|---|
| DIN 601 | Hex bolt |
| DIN 603 | Lock bolt |
| DIN 604 | Countersunk-head bolt with a ridge |
| DIN 605 | Countersunk bolt with a square neck |
| DIN 607 | Round-head ridge bolt |
| DIN 608 | Countersunk-head set screw with square shank |
| DIN 609 | Hex socket screw with long shank |
| DIN 610 | Hex socket screw with short shank |
| DIN 653 | Low-profile knurled screw |
| DIN 6319 C | Convex washer |
| DIN 6319 D | Countersunk washer, hardened |
| DIN 6325 | Cylindrical pin, hardened |
| DIN 6330 | Tall hex nut |
| DIN 6331 | High-profile hex collar nut |
| DIN 6332 | Tension screw, net pressure plug |
| DIN 6334 | Tall Hex Nut 3D / Coupling Nut |
| DIN 6340 | Hardened washer |
| DIN 6796 | Disc Spring |
| DIN 6797 A | Tandveerringen with open outer teeth |
| DIN 6797J | Open-ended spring washers with internal teeth |
| DIN 6797 V | Toothed Spring Ring, Countersunk |
| DIN 6798 A | Toothed ring, closed external teeth |
| DIN 6798 J | Tandveerring, closed internal teeth |
| DIN 6798 V | Closed tooth spring ring with recessed outer teeth |
| DIN 6885 | Flat Spline with Rounded Ends |
| DIN 6887 | Head pin |
| DIN 6888 | Semicircular disc key |
| DIN 6912 | Low-profile cylinder screw with internal hex and tap guide |
| DIN 6914 | HV Tension Bolt |
| DIN 6915 | HV Locknut |
| DIN 6916 | HV Washer |
| DIN 6921 | Hex Flange Bolt |
| DIN 6923 | Hex Flange Nut |
| DIN 6924 | Self-locking hex nut with plastic lock ring |
| DIN 6925 | Self-locking solid-metal hex nut |
| DIN 6926 | Self-locking hex flange nut with plastic lock ring |