Unite threaded rod suspension
Threaded rod suspension components for timber and steel
Threaded rod suspension components for hanging and joining
Our threaded rod suspension page is built for hanging installations where the connection needs to be joined, extended or anchored back to the structure. On this page we focus on the Unite components that sit around the rod itself, including eye coupling nuts, coupling nuts and hangerbolts for timber and steel.
That makes the page especially useful when you need a practical suspension detail for ventilation and other suspended services, and want to choose between parts for joining threaded rods, creating a connection point or hanging directly from a timber or steel construction.
Choose the right threaded rod suspension components
Eye coupling nuts
Choose our eye coupling nuts when your suspension setup needs a threaded connection point rather than a straight extension. They are used in combination with threaded rod and are offered in M6, M8, M10 and M12, which makes them useful when the rod size is already set by the suspension design.
See sizes and details for our eye coupling nuts on page 93 in the catalogue
Coupling nuts
Use our coupling nuts when you need to join threaded rods in a clean, straightforward way. They are the better choice when the main job is extension rather than hanging from the substrate, and the range covers M6 x 30, M8 x 40, M10 x 50 and M12 x 50.
See sizes and details for our coupling nuts on page 93 in the catalogue
Hangerbolts for timber
Choose our hangerbolts for timber when the suspension must start directly from a timber construction. These versions are used together with coupling nuts, eye coupling nuts or similar parts, and the T25 drive helps make installation quick and simple on site.
See sizes and details for our timber hangerbolts on page 95 in the catalogue
Hangerbolt for steel
Use our hangerbolt for steel when the suspension point needs to be fixed directly into a steel construction rather than timber. It is intended for use with M8-threaded connection parts such as coupling nuts or eye coupling nuts, and the product table shows the stated drill-capacity range for this option.
See drill-capacity and connection details for our steel hangerbolt on page 95 in the catalogue
Timber hangerbolt with inner nuts M8/M10
Choose this timber hangerbolt with combined internal thread when you want a timber-fixed suspension point without building the connection with separate parts first. It is intended for hanging threaded rods from timber constructions and is especially relevant when M8/M10 compatibility is the key requirement.
See details for our timber hangerbolt with inner nuts M8/M10 on page 95 in the catalogue
Detailed threaded rod suspension data in our catalogue
The catalogue below is where you can compare eye coupling nuts, coupling nuts and the different hangerbolt options for timber and steel in one place. That makes it easier to line up the actual suspension function with the connection detail you need.
Use it when you need to check thread size, whether the job is to join threaded rods or hang from the structure, and whether the suspension should start in timber or steel.
Need help building the right suspension detail?
If you send us the substrate, the thread size you plan to use and whether the suspension needs to join rods or hang directly from timber or steel, we can help narrow the setup quickly. That is often the easiest way to avoid mixed thread sizes, the wrong hangerbolt choice or unnecessary rework on site.
How do I choose between eye coupling nuts and coupling nuts?
Choose eye coupling nuts when you need a connection point used with threaded rod, and choose coupling nuts when the main job is joining two threaded rod sections. The difference is functional: one helps create a connection point, while the other extends the rod run. On this page, both are available in M6, M8, M10 and M12, so the decision is mainly about function rather than broad size availability.
When should I use hangerbolts for timber instead of hangerbolts for steel?
Use timber hangerbolts when the suspension starts in a timber construction, and use the steel hangerbolt when it starts in steel. That matters because the catalogue separates the products by substrate and shows different connection details, including a stated drill-capacity range for the steel version. Matching the hangerbolt to the real base material helps avoid slower installation and the wrong connection method.
What is the difference between the standard timber hangerbolt and the timber hangerbolt with inner nuts M8/M10?
The standard timber hangerbolt is used with separate coupling nuts, eye coupling nuts or similar parts, while the M8/M10 version gives a combined internal thread in the hangerbolt itself. That makes the choice practical: use the standard version when you want more freedom to build the suspension with separate connection parts, and use the integrated version when that combined thread suits the planned rod connection better.
Do the suspension parts need to match the same thread size?
Yes, the suspension components need compatible thread sizes across the setup. The catalogue page for eye coupling nuts and coupling nuts covers M6, M8, M10 and M12, while the hangerbolt solutions are tied to M8 or M8/M10 depending on the product. Checking thread compatibility early helps avoid mismatched parts and unnecessary site rework.
Can Unite help us choose the right threaded rod suspension setup for a project?
Yes, that is often the fastest way to get the right solution when the setup depends on substrate, connection method and thread size. A short project description with the base material, planned rod size and whether you need to join rods or hang directly from timber or steel usually makes the choice much quicker. That is especially useful when ventilation or other suspended installations need a clean, repeatable suspension detail.