How to Install a Metal EMT Two Hole Strap on EMT Conduit

03, Sep. 2026

 

How to Install a Metal EMT Two Hole Strap on EMT Conduit

To install a metal EMT two hole strap, I first position the strap over the conduit, mark two aligned mounting points, drill or prepare suitable holes, and fasten the strap to a solid supporting surface without crushing the EMT. The strap should hold the conduit securely while allowing the installation to remain straight, accessible, and compatible with the applicable electrical code. Before starting, I confirm the EMT size, strap material, fastener type, support surface, and local requirements.

View Details

A two hole strap is designed to secure EMT conduit with two mounting points instead of one. This arrangement can improve resistance to movement and help maintain consistent alignment, but the strap is only one part of the complete installation. I also check conduit support spacing, fittings, grounding and bonding requirements, corrosion conditions, and the suitability of the building surface.

What You Need Before Installation

I prepare the strap, EMT conduit, measuring tool, pencil or marker, drill, suitable drill bit, screwdriver or nut driver, and compatible fasteners. Depending on the wall or structure, the fastener may be a screw, anchor, bolt, or another approved fixing method. I do not select fasteners based only on the strap hole size; the fastener must also match the substrate and the expected mechanical load.

I inspect the Metal EMT Two Hole Strap before use. The two holes should be clean and free from burrs, the strap should not be bent or cracked, and the surface finish should be consistent enough for the installation environment. If the conduit will be exposed to moisture, chemicals, outdoor conditions, or dissimilar metals, I verify material compatibility rather than assuming a standard steel strap is suitable.

Confirm the Conduit and Strap Fit

I match the strap to the outside diameter and trade size of the EMT conduit. For example, a strap intended for 1/2-inch EMT should not be forced onto a larger conduit, and a loose strap may allow unnecessary movement. The strap should sit evenly against the conduit without sharp edges contacting or damaging the tubing.

I also confirm whether the product is intended for indoor, outdoor, dry, damp, or corrosive locations. SIOSAN can support buyers who need Metal EMT Two Hole Strap sourcing for aluminum pipes and related conduit applications by reviewing dimensions, material preferences, surface treatment, packaging requirements, and production quantities before quotation.

Step-by-Step Installation Process

1. De-Energize and Inspect the Work Area

I begin by confirming that the work area is safe and that the circuit is de-energized when the installation involves an existing electrical system. A qualified electrician should follow the required lockout, verification, and site safety procedures. I also check whether the mounting surface contains hidden wiring, plumbing, reinforcement, or other obstructions before drilling.

The conduit route should be planned before the strap is installed. I look for a straight path with enough room for fittings, enclosure connections, bends, and future inspection. If the conduit changes direction, I locate the strap so that it supports the run without interfering with a coupling, connector, box, or access point.

2. Position the EMT Conduit

I place the EMT conduit in its intended final position and check its alignment from more than one direction. The conduit should not be under unnecessary bending stress, and the connection points should remain properly seated. When the run is horizontal or vertical, I use a level or visual reference to keep the installation consistent.

Near a box or enclosure, I follow the applicable code and project specification for support location. A commonly referenced practice is to provide support within 12 inches of a box, cabinet, or fitting, but exact requirements can vary by jurisdiction, conduit size, installation method, and local code adoption. I treat this measurement as a planning reference, not a substitute for code review.

3. Place the Two Hole Strap Over the Conduit

I place the Metal EMT Two Hole Strap over the EMT so that the curved section rests evenly on the conduit. The strap should not be twisted, tilted, or positioned over a damaged section of tubing. I keep both mounting holes accessible and make sure the strap does not obstruct a coupling or connector.

At this stage, I check that the strap holds the conduit firmly without excessive compression. EMT is a formed metal tube, so over-tightening can deform the conduit and make later fitting installation more difficult. A correctly fitted strap provides restraint without flattening, gouging, or visibly distorting the tubing.

4. Mark and Prepare the Mounting Holes

With the strap held in the correct position, I mark the centers of the two mounting holes. I remove the strap before drilling when the substrate requires pilot holes, then drill using a bit appropriate for wood, masonry, steel, or another mounting material. The two holes should remain aligned with the strap and should not be enlarged beyond what is necessary for the selected fasteners.

If you are looking for more details, kindly visit SIOSAN.

I remove drilling debris and inspect the hole edges before fastening. On masonry or hollow wall surfaces, I use anchors rated for the substrate and expected load. On metal framing, I confirm that the selected screw or bolt provides adequate engagement and does not interfere with concealed services or the opposite side of the structure.

5. Install and Tighten the Fasteners

I return the strap to the conduit, insert both fasteners, and tighten them gradually. I alternate between the two mounting points so the strap remains centered and the load is distributed evenly. I stop when the strap is secure and the conduit cannot move excessively, rather than continuing until the metal strap or EMT is visibly distorted.

The final fastening method depends on the substrate and project requirements. I use the fastener manufacturer’s installation instructions where anchors are involved and follow the project specification for torque when a torque value is provided. If no verified torque value is available for the exact strap and fastener combination, I avoid inventing one and rely on proper fit, secure engagement, and inspection.

6. Inspect the Completed Support

After fastening, I check the conduit for movement, alignment, and surface damage. The strap should remain seated, both fasteners should be engaged, and the mounting surface should not show cracking, pull-out, or other signs of failure. I also confirm that the conduit remains properly connected to fittings and that the support does not create a sharp point or obstruction.

For a straight run, I repeat the same inspection at every support location. I verify that the spacing follows the applicable electrical code and project drawings rather than applying one universal distance to every installation. Finally, I document the product size, material, fastening method, and any special environmental considerations when the project requires traceability.

Key Decisions That Affect Installation Quality

Material and Surface Protection

Steel, stainless steel, aluminum, and coated metal straps may be appropriate for different environments. I select the material based on corrosion exposure, conduit material, temperature, installation location, and the risk of galvanic interaction. A zinc-coated strap may suit many general applications, while a more corrosion-resistant option may be more appropriate for wet, outdoor, or chemically exposed areas.

Fastener and Substrate Compatibility

A strong strap cannot compensate for an unsuitable fastener or weak mounting surface. I evaluate whether the support is concrete, brick, wood, steel framing, or another material, then choose a compatible fastening system. For larger projects, I recommend confirming pull-out capacity and installation details with the responsible engineer, contractor, or fastener manufacturer.

Conduit Movement and Expansion

I distinguish between securing the conduit and restricting movement that may be required by the design. EMT installations can be affected by temperature changes, building movement, vibration, or long straight runs. Where expansion or movement fittings are specified, I position supports according to the fitting and project instructions instead of treating every strap as a rigid restraint.

Common Installation Mistakes to Avoid

  • Using the wrong strap size: A loose or undersized strap may not support the EMT correctly.
  • Using one fastener: A two hole strap is designed around two mounting points; leaving one hole unused may reduce stability and does not follow the intended installation method.
  • Over-tightening: Excessive force can deform the strap, damage the conduit, or strip the fastener.
  • Mounting over a fitting: The strap should not interfere with couplings, connectors, boxes, or inspection access.
  • Ignoring corrosion: Similar-looking metals may perform differently in wet or chemically aggressive conditions.
  • Skipping code review: Support spacing, grounding, bonding, and location requirements must be checked for the applicable jurisdiction.

Quick Installation Summary

  • Match the two hole strap to the EMT conduit size and environment.
  • Plan the route and verify the support surface before drilling.
  • Position the strap squarely over the conduit and mark both holes.
  • Use fasteners and anchors suitable for the actual substrate.
  • Tighten evenly without crushing or deforming the EMT.
  • Inspect alignment, stability, fitting clearance, and code-related support spacing.

How SIOSAN Can Support Your Sourcing Plan

As a manufacturer and exporter, I understand that B2B buyers often need more than a standard catalog description. Before placing an order, I recommend confirming the required EMT size range, material, finish, hole dimensions, strap geometry, packaging, labeling, and inspection expectations. These details help reduce the risk of receiving a product that fits the conduit but does not suit the installation environment or fastening process.

SIOSAN can discuss production requirements for Metal EMT Two Hole Strap and related aluminum pipe or conduit support components. For an efficient quotation, buyers can provide the target dimensions, estimated order quantity, destination market, application environment, sample requirements, and any drawings or technical specifications. Where a project has special constraints, I recommend requesting a dimensional review or sample evaluation before approving a larger production order.

Conclusion

Installing a Metal EMT Two Hole Strap correctly involves more than tightening two screws. I first verify the conduit and strap fit, plan the route, select substrate-compatible fasteners, position the strap evenly, tighten both mounting points, and inspect the completed support. I also confirm local code requirements for support spacing, grounding, bonding, corrosion protection, and movement control.

The next practical step is to identify your EMT size, mounting surface, operating environment, and required quantity. Share those details with SIOSAN when requesting a quotation so the product, material, finish, packaging, and supply plan can be reviewed together. This approach helps create a secure installation and a more reliable B2B purchasing decision.

Contact us to discuss your requirements of Metal EMT Two Hole Strap. Our experienced sales team can help you identify the options that best suit your needs.