DIN6334 Hexagon Coupling Nuts
DIN 6334 Hexagon Coupling Nuts are elongated internally threaded nuts used to join two externally threaded components and extend the overall threaded connection. The long hexagonal body provides wrench flats for tightening, while the continuous internal thread allows threaded rods, studs, or other compatible fasteners to be connected end-to-end.
The extended nut length provides a substantial threaded engagement area on both sides of the connection. This makes DIN 6334 coupling nuts useful when a threaded rod needs to be lengthened, joined, or adjusted without replacing the original threaded section. The hexagonal exterior also allows the coupling nut to be tightened with a conventional wrench or spanner. DIN 6334 Hexagon Coupling Nuts are commonly used with threaded rods, studs, anchor rods, machinery components, installation systems, and fabricated assemblies. The mating thread size and pitch should be matched on both sides of the coupling nut to ensure proper engagement and alignment.
Specification:
DIN 6334 Hexagon Coupling Nuts feature an elongated hexagonal body with an overall length of approximately three times the nominal thread diameter. This extended body provides substantial internal thread engagement from both ends, making the nut suitable for joining threaded rods, studs, and other externally threaded components.
The internal thread is metric and extends through the coupling nut, while the hexagonal profile provides wrench flats for tightening. The main dimensional parameters include the nominal thread diameter, thread pitch, overall length, and width across flats.
| Item | Specification |
|---|---|
| Standard | DIN6334 |
| Product Type | Hexagon Coupling Nut |
| Thread | Metric Internal Thread |
| Diameter | M6-M36 |
| Length | 3 x nominal diameter |
| Material | Carbon Steel, Stainless Steel |
| Surface Treatment | Zinc Plated,Black Oxidation, Hot Dip Galvanized,Bright Finish,Passivation |
Dimension Chart of DIN6334 Hex Coupling Nuts:
The DIN 6334 dimension chart shows the main measurements used to identify the coupling nut and match it with the corresponding threaded components. The key dimensions include the nominal thread diameter, thread pitch, overall length, and width across flats.
A characteristic feature of DIN 6334 coupling nuts is their elongated body, with an overall length of approximately three times the nominal thread diameter. This extended length provides sufficient internal thread engagement from both ends while retaining the hexagonal profile required for wrench tightening.
| Thread Diameter | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M36 |
| P | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 |
| L | 18 | 24 | 30 | 36 | 42 | 48 | 54 | 60 | 66 | 72 | 81 | 90 | 108 |
| s max | 10 | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 55 |
| e min | 11.05 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 | 29.56 | 33.53 | 35.03 | 41.6 | 45.2 | 53.1 | 60.79 |
- RELATED NUT LISTS:
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- ASME/ANSI B18.2.2 Hex Flange Nuts
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- DIN982 Nylon Lock Nuts
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- HEX NUT
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- UNI5588 Hex Nuts
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- UNI5713 Hex Nuts
- AS1112.1 Hex Nuts
- AS1252 Hex Nuts
- AS/NZS 2451 Hex Nuts
- AS/NZS 2465 Hex Nuts
- DIN6330 Hex Thick Nuts
- ASME/ANSI B 18.2.2 Hex Thick Nuts
Application of DIN6334 Hexagon Coupling Nuts:
DIN 6334 Hexagon Coupling Nuts are used when two externally threaded components need to be joined end-to-end or when an existing threaded connection needs to be extended. The long internal thread provides engagement on both sides, while the hexagonal body makes installation possible with a standard wrench.
Threaded Rod and Stud Extensions
Coupling nuts are commonly used to connect threaded rods, studs, and other externally threaded components. They are particularly useful when a longer continuous threaded section is needed without replacing the original rod or stud with a longer piece.
Installation and Support Systems
They can be used in threaded rod installation systems, adjustable supports, mounting assemblies, frames, brackets, and fabricated structures where threaded components need to be connected or extended. The extended body provides a substantial engagement area on both sides of the connection.
Machinery and Mechanical Assemblies
DIN 6334 coupling nuts are also suitable for machinery assemblies, fixtures, equipment mounting, fabricated components, and mechanical structures where two threaded sections need to be joined while maintaining a compact hexagonal form for tightening.