Threaded Rod

All thread available in Various Materials

Threaded Rods are long rods that are fully threaded from end to end. They are similar to the threaded portion of a bolt but are much larger and do not feature a head. Also known as threaded bars, all-thread, and threaded studs, threaded rods are used to join and stabilize structures or objects, often into ceilings or walls. Threaded rods come in multiple rod sizes, grades, materials, and coatings to fit all application needs.

Since threaded rod has threading running their entire length, they can fully engage nuts or other female-threaded components. This makes threaded rod excel at tension applications specifically.

For tension applications, threaded rod may find frequent use alongside coupling or reducer nuts. Coupling nuts offer the ability to connect multiple threaded rods together. Reducer coupling nuts offer the ability to couple different rod sizes. Threaded rods are often used with coupling nuts in tension assemblies.

In many cases, the application for a threaded rod requires the rod to be hanging from a ceiling or a similar structure. This is why you'll also find threaded rod commonly used with Sammy screws or other concrete anchors. These kinds of fasteners allow the threaded rod to hang or stabilize structures such as channel, strut assemblies, pipe, and other multi-faceted systems.

All-thread rod is commonly used in plumbing, construction, and maintenance applications where a system needs to be raised or stabilized. It is often used to hang piping for sprinkler systems, plumbing systems, or electrical systems where wires or piping needs to be raised and out of the way.

Available Materials & Coatings

Threaded Rods are commonly available in steel alloy, which you can find plain or with zinc plating or hot-dip galvanized coating. Plain finished threaded rod is often referred to as “black,” and it is raw uncoated steel. Suppose your threaded Rods are visible to outside elements. In that case, you may need a hot-dip galvanized coating to avoid any corrosion. Zinc plating can also be used to prevent corrosion, though a hot-dip galvanized layer will provide greater corrosion-resistance. Zinc plating is usually used for aesthetic purposes. It can be plated in many colors and provides a shiny coating.

Threaded rod is also available in stainless steel, both 18-8 and 316 varieties, brass, silicon bronze, and aluminum for when you want a balance of strength and corrosion resistance. For extremely corrosive environments, we recommend silicon bronze. For saltwater environments, 316 stainless steel is the go-to, with 18-8 stainless steel being best suited for general environments and aluminum used when weight is a concern.

---

---

FAQs

What is threaded rod used for?

Threaded rods have various applications, effectively being used as a pin to fasten or connect two materials together. They are also used as supports to stabilize structures in some applications.

How is threaded rod measured?

Threaded rod is measured Diameter-Threading x Length. For example, you may find a threaded rod measuring 1/4"-20 x 6ft. The 1/4" is the rod's diameter, the 20 means there are 20 threads per inch of rod, and the 6ft is how long the rod is. Most threaded rod is available in either three-foot or six-foot lengths. Metric is measured the same way, but instead of threads per inch, it's thread pitch or the distance between each thread. Metric threaded rods are available in lengths of one meter.

How do you join two threaded rods together?

Couplings nut are used to join two threaded rods together. If the threaded rods are different thread sizes, a reducer nut or reducing coupling nut can be used instead.

What is a threaded rod called?

Threaded rods are also known as threaded studs, all-thread, and threaded bars.

Can you cut threaded rod?

If the standard 6-foot or 3-foot lengths aren't quite what you need, you can cut the threaded rod to size. We recommend a cold-cut chop saw for a cleaner cut, but you can use an abrasive saw or hacksaw instead if you want. Just be sure to either file the cut area down or use a chamfering tool until you can fasten a nut on the end of the rod.