Best current price£6.98from OnBuy.com
Shopping.co.uk recommended and popular offers
OnBuy.com£6.98Visit shop Hex Coupling Nuts Din 6334 Bzp Steel Threaded Rod Connector Long Nut Studding Extension M5 To M24 5056826613318
Visit shop
B&Q£10.08Visit shop B&Q - 5 X M5 Hex Coupling NutsThreaded Rod Connector Studding ExtensionBzp Steel Class 6Din 6334
Visit shop11 offers from £6.98 - £28.28
View price history by clicking the chart icon.
The Diyuk Hex Coupling Nut (DIN 6334) is a professional-grade fastener engineered for construction, manufacturing, and engineering professionals who need to reliably extend or join metric threaded rods and studs. These elongated nuts provide superior thread engagement and load-bearing strength, though they are specifically intended for indoor or dry environments due to their Bright Zinc Plating (BZP) finish.
| Model Part Number | DIN 6334 |
|---|---|
| Brand | Diyuk |
It specifies that the length of the hex nut must be exactly three times its nominal thread diameter to provide extended thread contact.
No, the Bright Zinc Plating (BZP) provides only moderate corrosion resistance and is intended for indoor or climate-controlled dry environments.
Choose the nut size that matches the diameter and thread pitch of your existing metric threaded rods.
Yes, they are designed to join two rods, provided both rods have matching metric threads.
These nuts are manufactured from carbon steel with a minimum Class 6 strength rating.
Verify that you are using the correct metric thread pitch (coarse vs. fine) and that the rod diameter matches the nut size.
Inspect the rod for burrs or damage. If damaged, use a file to clean the threads before attempting to attach the nut again.
The BZP coating has likely been compromised by moisture or abrasive wear. Remove surface rust with a wire brush and apply a rust-preventative lubricant.
For proper installation, always verify that the thread pitch of your rod matches the thread pitch of the DIN 6334 coupling nut to prevent cross-threading. Use a standard open-ended or socket wrench for tightening. To maintain the life of the BZP finish, avoid using abrasive tools that could strip the zinc coating. In environments with high humidity or chemical exposure, consider applying a thin layer of anti-seize or mechanical grease to the threads to prevent oxidation. Ensure that both rods are fully seated inside the nut; leaving a gap in the center reduces the load-bearing capacity and creates a structural weak point.
