Skip to content
Free Local Pickup Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted American Hardware Brands

Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Compression Coupling For EMT 50 pk

Meet the Sigma Electric ProConnex 1/2 in. die-cast zinc compression coupling for EMT, a rugged and reliable solution built for durable conduit connections. Supplied in a bulk 50-pa…

Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $36.99, average $42.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Meet the Sigma Electric ProConnex 1/2 in. die-cast zinc compression coupling for EMT, a rugged and reliable solution built for durable conduit connections. Supplied in a bulk 50-pack, it’s designed for professionals who value consistent performance, quick installs, and code‑compliant fittings on larger projects.

  • Material and durability: Die-cast zinc construction delivers superior strength-to-weight balance and excellent corrosion resistance, ensuring long‑term reliability in a variety of indoor installations.
  • Size and compatibility: 1/2 inch diameter designed specifically for EMT conduit; uses a compression connection to secure two conduit ends without threading or soldering.
  • Bulk convenience: 50 pieces per package, ideal for tradespeople, contractors, and stock rooms that tackle multiple runs or bulk replacements.
  • Code compliance: UL listed and CSA listed, providing confidence that these fittings meet recognized safety standards for electrical installations.
  • Installation efficiency: The compression design simplifies assembly—tighten the nut to create a secure, continuous run without screws or clamps that can loosen over time.
  • Value proposition for projects: A dependable, standardized component within the ProConnex line, ensuring compatibility with other Sigma Electric EMT fittings for streamlined procurement and consistent performance on both new builds and remodels.

Why choose ProConnex compression fittings? They deliver fast, predictable installs with fewer parts and less fuss than traditional threaded options, while maintaining strong mechanical and electrical integrity. The die-cast zinc body resists impact and wear, helping you keep conduit runs precise and secure from wall to ceiling and through obstacles on site.

Practical usage tips:

  • Prepare EMT ends with a clean cut and deburr for best seating and compression.
  • Slide the compression nut and ferrule over the conduit, align ends, then tighten until snug with the appropriate wrench. Avoid over‑tightening to prevent damaging the ferrule.
  • Use alongside other ProConnex components to maintain a consistent system—reliable fit and predictable performance across the project.

Bulk sizing makes these 1/2 in. ProConnex compression couplings ideal for professional projects, maintenance crews, and warehouse stock. If you’re wiring with EMT conduit and need a trustworthy, ready-to-use solution in bulk, this 50-pack delivers the efficiency, durability, and code‑compliant performance you expect from Sigma Electric.

The Details Specifications

Brand Sigma Electric
SKU 3560638
UPC 031857652609
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 50 BX
Dimensions (L × W × H) 7 × 4 × 6
Weight 7 lbs
Cubic Feet 0.10532 ft³
Country of Origin INDIA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare