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DIN 6334 standard | Hexagon coupling nut | Zinc coating (Zn) | For connecting rods and threaded components
The high-profile coupling nut in accordance with DIN 6334 is a component designed for joining two sections of threaded rod or other components with metric threads. Its distinctive elongated design provides a larger thread contact area and a stable connection in assembly, installation and structural applications.
The product is made of steel and has a zinc coating, which reduces the risk of corrosion under typical operating conditions. The hexagonal shape allows for convenient assembly using standard flat-bladed, ring and socket spanners.
DIN 6334 nuts are primarily used for extending threaded rods, in installation work, in steel structures, in fastening systems and in workshop applications. The standard specifies a version with increased height, typically around three times the thread diameter.
| Thread | Pitch P [mm] | s [mm] | e min. [mm] | m / L [mm] |
|---|---|---|---|---|
| M6 | 1.00 | 10 | 11.05 | 18 |
| M8 | 1.25 | 13 | 14.38 | 24 |
| M10 | 1.50 | 17 | 18.90 | 30 |
| M12 | 1.75 | 19 | 21.10 | 36 |
| M14 | 2.00 | 22 | 24.49 | 42 |
| M16 | 2.00 | 24 | 26.75 | 48 |
| M18 | 2.50 | 27 | 29.56 | 54 |
| M20 | 2.50 | 30 | 33.53 | 60 |
| M22 | 2.50 | 32 | 35.03 | 66 |
| M24 | 3.00 | 36 | 39.98 | 72 |
| M27 | 3.00 | 41 | 45.20 | 81 |
| M30 | 3.50 | 46 | 50.85 | 90 |
| M33 | 3.50 | 50 | 55.37 | 99 |
| M36 | 4.00 | 55 | 60.79 | 108 |
| M42 | 4.50 | 65 | 71.30 | 126 |
| M48 | 5.00 | 75 | 82.60 | 144 |
Dimensions are given in millimetres. The length of the DIN 6334 coupling nut corresponds to the tall type, used for joining threaded components and extending rods.
The DIN 6334 galvanised high-profile coupling nut is a practical component for extending and joining threaded rods in technical, assembly and industrial applications. Thanks to its elongated design, standard dimensions and zinc coating, it is ideal wherever a secure and durable connection is required.
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