What is this galvanized square steel tube used for?

It is used as an internal reinforcement or connector for compatible Alumission aluminum fence and gate posts, including concrete-set posts, core-drilled installations, and extended sliding-gate frames.

What size is the tube?

The outside dimensions are 1-1/4″ × 1-1/4″ with a 1/8″ wall thickness.

Can it be used to extend a sliding-gate frame?

Yes. It can act as an internal splice between compatible aluminum post sections when a sliding-gate frame must be longer than 10′. Confirm adequate overlap and fastening for the project.

Is the tube galvanized?

Yes. The steel tube has a galvanized finish for improved corrosion resistance.

Which Alumission posts can sleeve over it?

It is intended for compatible Alumission aluminum posts with an inner cavity designed to receive a 1-1/4″ × 1-1/4″ tube. Verify the receiving profile before ordering.

What lengths are available?

Choose a 4′, 6′, or 8′ tube from the length selector.

How is it installed in a core-drilled hole?

For the typical Alumission method, core drill a 2″ hole, set the galvanized tube with compatible anchoring cement, allow it to cure, and then sleeve the aluminum post over the tube.

Can the steel tube be set directly in concrete?

Yes. It may be set directly in a concrete foundation where the project design and site conditions allow.

How do I secure the aluminum post after sleeving it over the tube?

Use suitable #12 self-drilling screws to fasten the aluminum post to the internal steel tube.

Are #12 screws included?

No. #12 self-drilling screws and other installation materials are sold separately.

Does this product provide a structural load rating?

No project-specific load rating is stated. Confirm local code, footing, embedment, wind-load, and engineering requirements before installation.

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1-1/4 inch galvanized square steel tube with 1/8 inch wall thickness

1-1/4 inch galvanized square steel tube dimensional drawing without a fixed-length callout

Close-up of a 1-1/4 inch galvanized square steel tube on a clean white background

1-1/4″ × 1-1/4″ Galvanized Square Steel Tube – 1/8″ Wall

Name: 1-1/4″ × 1-1/4″ Galvanized Square Steel Tube – 1/8″ Wall
SKU: 124548
Availability: InStock

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1-1/4″ × 1-1/4″ galvanized square steel tube with a 1/8″ wall. Available in 4′, 6′, and 8′ lengths for Alumission post reinforcement, concrete installations, core drilling, and post extensions.

STARTING AT $36.93

Length

Clear

WHAT’S INCLUDED:

1-1/4″ x 1-1/4″ 1/8″ wall and 4′ long square steel tube 4′. To use when installing aluminum fence in dirt with concrete foundation or a core drill installation.

Box Weight

Box Dimension

TECHNICAL SPECIFICATIONS & INSTALLATION

This 1-1/4″ × 1-1/4″ galvanized square steel tube provides internal reinforcement for compatible Alumission aluminum fence and gate posts. Its 1/8″ wall and galvanized finish make it suitable for concrete-set installations, core-drilled mounting, and post extensions.

Set the steel tube directly in concrete or install it in a 2″ core-drilled hole with compatible anchoring cement, then sleeve the aluminum post over it. Secure the aluminum to the inner steel tube using suitable #12 self-drilling screws. It may also connect two compatible aluminum post sections for extended frames, including sliding gates longer than 10′.

Questions about this product?

For help confirming compatibility, sizes or required components, contact Alumission technical support with the product name and your project details.

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