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
FAQ Shipping & Returns Order Lookup Contact Account
Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC
Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC
Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC

Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC

Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC is a rugged, code-ready termination designed to securely grip and protect conductors in i…

Sigma Electric MPN 49407 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $4.99. Our online price is $5.99.
$5.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
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

Sigma Electric ProConnex 1/2 in. D Die-Cast Zinc Squeeze Connector For AC, MC or FMC/RWFMC is a rugged, code-ready termination designed to securely grip and protect conductors in indoor, dry-location installations. Built from durable die-cast zinc, this 1/2 in. squeeze connector delivers dependable performance for a range of cable types, including AC, MC and FMC/RWFMC.

  • Material: Die-Cast Zinc for enhanced strength, wear resistance, and long-term reliability.
  • Size: 1/2 in. diameter squeeze connector, purpose-built for trade-size applications.
  • Conduit compatibility: Suitable with AC, MC, and FMC/RWFMC cables for versatile installations.
  • Listings: UL Listed and CSA Listed, providing recognized compliance for safe electrical work.
  • Packaging: Sold in a bagged single-unit package for convenient, on-demand use.
  • Application: Designed for indoor dry location use, delivering reliable performance in typical interior electrical runs.

This ProConnex connector adds real value beyond a basic fitting. Its die-cast zinc construction yields a robust grip on armored and flexible cables, reducing the risk of conductor loosening under vibration or movement. The result is a sealed, strain-relieved termination that helps protect against moisture, contaminants, and physical wear—key factors in maintaining secure electrical integrity over time.

Who benefits most: electricians and installers working on residential panels, commercial enclosures, or retrofit projects where MC or FMC/RWFMC cables enter a device box in indoor environments. It’s especially advantageous when code compliance (UL and CSA listings) is a priority and a durable, reliable termination is essential for ongoing service life.

  • Inside main panels, subpanels, junction boxes, and other indoor electrical enclosures that require a secure 1/2 in. squeeze connection for AC, MC, or FMC/RWFMC cables.
  • Why choose this over generic fittings: The die-cast zinc body plus recognized listings deliver a stronger, more durable termination with proven performance in dry indoor setups, outperforming standard non-listed or plastic alternatives.

ProConnex by Sigma Electric combines practical engineering with code-conscious design. For projects where reliability, compliance, and ease of installation matter, this 1/2 in. squeeze connector is a trusted choice that helps you finish faster without compromising safety.

The Details Specifications

Brand Sigma Electric
SKU 3181815
UPC 031857494070
Unit 0
Case Pack Quantity 25 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 1 × 4 × 6
Weight 0 lbs
Cubic Feet 0.00321 ft³
Country of Origin INDIA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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