Products Description
The appearance of the hex coupling nut is hexagonal, usually used with bolts or screws, mainly used to connect and tighten various mechanical equipment and structures. Its unique hexagonal shape provides multiple planes for precise tightening or loosening with tools such as wrenches, ensuring an efficient and convenient installation process. The hex nut is equipped with a fine machined thread inside to form a solid connection with a matching bolt or screw, and is suitable for a variety of applications requiring high strength fixation.
Parameters
|
Standard |
DIN6334 |
|
Name |
Hexagonal coupling nuts |
|
Material |
carbon steel and alloy steel, etc. |
|
Grade |
Grade 4.8, 5.8, 8.8 |
|
Nominal diameter |
M2-M48 |
|
Pitch |
0.4-5 |
|
Finish |
ZP,YZ,BLACK |
|
Alias |
Long Nut |
Typical Applications
Overhead pipe supports
Threaded rods hang from ceiling brackets. When a single rod isn't long enough, use a coupling nut to join two. M8, M10, M12 are the most common – hot-dip galvanized or Dacromet for corrosion resistance.
01
Equipment leveling & mounting
Heavy machinery often uses coupling nuts with leveling screws. Turn the nut to raise or lower the equipment by a few mm.
02
Molds and fixtures
Need to extend a lifting eye bolt? Put a coupling nut between the mold and the eyebolt. Or use one in a clamp assembly to extend the pressing screw.
03
Stage & exhibition structures
Temporary trusses, backdrop stands – coupling nuts allow quick height changes. Stainless steel looks clean and won't rust.
04
Furniture connectors
Some flat-pack furniture uses hidden coupling nuts to pull two panels together from inside.
05
Our Products
Installation Tips
- Thread engagement depth – Screw each rod in at least 1.5× the rod diameter. For M10, that's 15mm minimum. Too shallow and the threads will strip under load.
- Locking without a jam nut – Standard coupling nuts don't resist vibration. If you need locking, use a nylon patch nut, or add a thin jam nut on each rod tightened against the coupling nut ends.
- Don't over-torque – The nut is usually stronger than the rod. The rod will strip first. Use torque values appropriate for the rod grade.
- Alignment – The two rods must be coaxial (straight line). If you force a crooked rod in, the nut will cross-thread or the assembly will bend under load. Hand-start before using a wrench.
Hot Tags: hex coupling nuts, China hex coupling nuts manufacturers, suppliers, factory, Threaded Rod Coupling Nuts, Hex Coupling Nuts, coupling nuts, Furniture Connecting Nuts, Stud Coupling Nuts, Cylindrical Coupling Nuts
