Topaz Lighting 520 Two-Hole Sn...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.54
Topaz Lighting 520 Two-Hole Snap-On Steel Conduit Strap

Topaz Lighting 520 Two-Hole Snap-On Steel Conduit Strap

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Model: 528

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.54
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Topaz Lighting 520 Two-Hole Snap-On Steel Conduit Strap

The Topaz Lighting 520 Two-Hole Snap-On Steel Conduit Strap is a professional-grade mounting strap engineered for secure, code-conscious conduit support in commercial and industrial electrical installations. Built from durable steel for long-term reliability, this two-hole snap-on strap is compatible with both rigid metallic conduit (RMC) and electrical metallic tubing (EMT), and is available in 3" and 4" trade sizes to match a range of conduit runs. Each strap ships in a convenient 100-pack, giving contractors and electricians the volume and consistency needed for large-scale conduit support systems across new construction and renovation projects.

Key Features

  • Trade Size: Available in 3" and 4" trade sizes to accommodate standard rigid and EMT conduit diameters across a range of installations.
  • Durable Construction: Steel construction delivers superior strength and long-lasting performance in demanding commercial and industrial environments.
  • Two-Hole Design: Dual fastener points provide enhanced stability and load distribution for a more secure conduit mount than single-hole alternatives.
  • Snap-On Type: Tool-friendly snap-on installation eliminates threading or complex assembly, improving jobsite efficiency and reducing labor time.
  • Rigid & EMT Compatible: Works seamlessly with both rigid metallic conduit (RMC) and electrical metallic tubing (EMT) for flexible application options on the same jobsite.
  • Value Pack Quantity: Supplied in a 100-pack for high-volume installations, reducing procurement time and cost per unit for contractors and electrical distributors.

Technical Specifications

  • Pack Size: 100
  • Trade Sizes: 3", 4"
  • Material: Steel
  • Conduit Compatibility: Rigid/EMT

Typical Applications

  • Commercial Electrical Conduit Installations
  • Industrial Conduit Support Systems
  • Institutional and Educational Buildings
  • Retail, Office, and Warehouse Facilities
  • Manufacturing Plants and Distribution Centers
  • New Construction and Renovation Electrical Projects

Why Topaz Lighting?

Topaz Lighting delivers professional-grade electrical components built to meet the demands of commercial and industrial installations. This two-hole snap-on conduit strap combines steel construction with a tool-free installation design to provide reliable, code-conscious conduit support across rigid and EMT applications in both 3" and 4" sizes. With a 100-pack quantity, Topaz Lighting ensures contractors and electricians have the volume and consistency needed to complete large-scale conduit support projects with confidence.

Product Specs

Product Type:
Conduit Strap
Conduit Type:
Rigid/IMC, EMT
Connection Type:
Snap-On
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Straps & Supports
Product Material:
Steel
Pack size (unit):
100
Product Size:
3" - 4"
Configuration:
Two-Hole

Topaz Lighting 528 – Frequently Asked Questions

1) What conduit sizes does the Topaz 520 two-hole strap fit?
The Topaz 520 family covers 3 inch and 4 inch trade sizes. Part number 520 is the 4 inch strap and part number 528 is the 3 inch. Order by the trade size of the conduit, not the measured outside diameter, since the strap is sized to standard trade dimensions.
2) Can I use the same strap on rigid conduit and on EMT?
Yes. The 520 strap is listed for rigid/IMC and EMT, so an electrician running both on the same job can stock one strap size instead of two. Rigid, IMC and EMT of the same trade size share the same nominal support dimension, which is why one strap covers them.
3) What does snap-on mean on this conduit strap, and does it change how I install it?
Snap-on means the pipe presses into the strap body and is held before you fasten it. You can set the straps on the wall or deck first, run the conduit, then snap it in and drive the fasteners, instead of holding pipe and strap together with one hand. No threading or assembly of loose pieces.
4) Is a steel strap the right choice for a damp or corrosive area?
The 520 is steel. Steel straps are standard for dry interior commercial and industrial work. For wet, outdoor or chemically aggressive locations, buyers typically move to a stainless or coated strap and matching stainless fasteners, since mixing a plain steel strap with dissimilar hardware in a damp location is where corrosion starts.
5) How many straps are in a pack of Topaz 520?
They ship 100 to a pack. For a long horizontal run that is roughly enough to support a couple hundred feet of large conduit at typical support spacing, so one pack usually covers a floor or a single feeder run rather than a whole building.
How fast can I get the Topaz Lighting 528 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Topaz Lighting 528 come with a warranty?
Absolutely. The Topaz Lighting 528 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Topaz Lighting 528?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Topaz Lighting 528 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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