Strut Parts & Fittings

What are Strut Parts & Fittings?

Strut parts and fittings are the hardware that attaches to strut channel to hold pipe, conduit, and equipment. Common pieces include pipe clamps, beam clamps, spring channel nuts, and post bases. These components position anywhere along the channel lips so you can build adjustable supports without drilling.

Which strut channel do these fittings work with?

These parts are built for standard strut profiles. Match the channel nut size and style to your channel width and lip geometry. For most 1-5/8 in channels, choose the matching spring channel nuts and pair them with the correct bolt thread.

How do I size a strut pipe clamp?

Size the clamp to the outside diameter of the pipe or tube. For copper or stainless tube, use the actual OD, not the nominal pipe size. When in doubt, measure the pipe with calipers and select the nearest clamp size from the product page.

What is a spring channel nut and which thread should I pick?

Spring channel nuts drop into the channel and are held in place by a spring for one-handed assembly. Choose the thread to match your hardware, for example 1/4-20, 5/16-18, or 3/8-16. Use the spring length that matches your channel depth.

What do beam clamps do in a strut system?

Beam clamps attach strut or threaded rod to structural steel without drilling. Select a clamp that fits the flange thickness and width, then connect to channel or rod as specified. Always follow the listed load and installation guidance on the product page.

When should I use a strut post base?

Post bases support vertical strut members on floors or walls. They help transfer load and keep uprights plumb. Choose a base that matches the strut profile and use anchors that suit the base material, such as concrete or structural steel.

Stainless steel vs zinc plated, which should I choose?

Stainless steel offers the best corrosion resistance for washdown, outdoor, or coastal exposure. Zinc plated hardware is common for indoor service where moisture is limited. For mixed materials, isolate dissimilar metals to limit galvanic corrosion.

How much load can my strut fitting support?

Capacity depends on the fitting type, channel profile, span, orientation, and the fasteners used. Check the individual product specifications and verify the complete assembly using applicable load tables before installation.

Installation tips for strut parts and fittings

Seat channel nuts fully under the lips, then tighten to the recommended torque.
Use lock washers or prevailing-torque nuts where vibration is present.
Square up post bases and clamps before final tightening to avoid side loading.

Strut Parts & Fittings FAQ

What size channel nut do I need for my strut?

Match the nut to your channel width and lip style, then pick the thread that fits your bolts, for example 1/4-20, 5/16-18, or 3/8-16.

How do I choose between cushioned and solid pipe clamps?

Use cushioned clamps to damp vibration and reduce noise, use solid clamps for higher temperatures or where elastomers are not desired.

Can I mount strut to a beam without drilling?

Yes, use a beam clamp that fits the flange thickness and follow the listed load rating and installation notes.

How do I select a post base for a vertical strut?

Choose a base that matches your strut profile and verify the anchor type and pattern for the mounting surface, such as concrete or steel.

Do stainless strut fittings prevent corrosion in wet areas?

Stainless steel provides superior corrosion resistance. Always consider the full assembly and environment, and avoid direct contact between dissimilar metals when possible.