---
product_id: 12894830
title: "SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2\" 50-Pack"
brand: "sigma engineered solutions"
price: "R1085"
currency: ZAR
in_stock: true
reviews_count: 10
category: "Sigma Engineered Solutions"
url: https://www.desertcart.co.za/products/12894830-sigma-engineered-solutions-proconnex-tc-501-emt-set-screw-connector
store_origin: ZA
region: South Africa
---

# 50-pack for bulk projects Die-cast zinc alloy durability Tri-combo screws for easy install SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack

**Brand:** sigma engineered solutions
**Price:** R1085
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence—durability meets efficiency!

## Quick Answers

- **What is this?** SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack by sigma engineered solutions
- **How much does it cost?** R1085 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/12894830-sigma-engineered-solutions-proconnex-tc-501-emt-set-screw-connector)

## Best For

- sigma engineered solutions enthusiasts

## Why This Product

- Trusted sigma engineered solutions brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Perfect Fit:** Specifically engineered for 1/2-inch EMT conduit and knockouts—flawless compatibility
- • **Built to Last:** Die-cast zinc alloy ensures rugged, corrosion-resistant performance
- • **Bulk Powerhouse:** 50 connectors in one pack—never run out mid-project
- • **Effortless Setup:** Tri-combo screws make installation a breeze—no extra tools needed
- • **Certified Confidence:** UL & CSA listed for guaranteed safety and code compliance

## Overview

The ProConnex EMT Set Screw Connector 1/2" 50-Pack by Sigma Engineered Solutions offers a durable, zinc die-cast construction designed for secure termination of 1/2-inch EMT conduit to knockout boxes. Featuring tri-combo screws for quick installation and UL/CSA certification, this bulk pack ensures reliable, code-compliant electrical connections ideal for professional and large-scale projects.

## Description

Upgrade your electrical installations with the Sigma Engineered Solutions ProConnex TC-501 EMT Set Screw Connector, available in a convenient 50-pack. This connector effectively terminates 1/2-inch EMT conduit to a 1/2-inch knockout in an outlet box or enclosure, providing secure and reliable electrical connections. Featuring a set screw type design with a tri-combo screw, it ensures easy installation and a tight grip.The zinc die-cast construction ensures durability and long-lasting performance, and is concrete-tight, when taped. With UL and CSA listings, this product meets safety standards and ensures peace of mind.

Review: ‘Duit - I put them right in the holes in the 4 square boxes and it held the conduit just like it is supposed to
Review: Quality connector - Great value delivered to your door!

## Features

- DURABLE CONSTRUCTION: Made from die-cast zinc alloy for long-lasting performance.
- EASY INSTALLATION: Tri-combo screws included for convenient installation.
- COMPATIBILITY: Compatible with 1/2-inch EMT Conduit and 1/2-inch knockouts in dry location applications.
- MULTI-PACK: Includes 50 connectors for multiple installations.
- CERTIFIED SAFETY: UL and CSA listed, ensuring compliance with stringent safety standards for peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006VWRC3Y |
| Best Sellers Rank | #309,456 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #451 in Electrical Conduit Fittings |
| Brand | Sigma Engineered Solutions |
| Color | Gray |
| Compatible groove diameter | 0.5 Inches |
| Date First Available | January 10, 2012 |
| Department | Unisex-Adult |
| Exterior Finish | Zinc |
| Fastener Size | 1/2 in x Length |
| Fastener Type | Set Screws |
| Global Trade Identification Number | 00031857652302 |
| Head Style | Flat |
| Head Type | Flat |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 0.5 Inches |
| Item Weight | 1.7 pounds |
| Item model number | TC-501 |
| Manufacturer | Sigma Electric |
| Material | Zinc |
| Metal Type | Die-Cast Zinc |
| Number of Pieces | 50 |
| Point Style | Tri-Round |
| Set Screw Thread Type | Right Hand |
| Size | No Size |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/2-inch |
| Thread Style | Right Hand |
| Thread Type | Un |
| UPC | 031857652302 |

## Product Details

- **Exterior Finish:** Zinc
- **Head Style:** Flat
- **Item dimensions L x W x H:** 0.93 x 1.06 x 1.07 inches
- **Material:** Zinc
- **Thread Size:** 1/2-inch

## Images

![SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack - Image 1](https://m.media-amazon.com/images/I/71ACt1kd5NL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ‘Duit
*by C***L on December 8, 2023*

I put them right in the holes in the 4 square boxes and it held the conduit just like it is supposed to

### ⭐⭐⭐⭐⭐ Quality connector
*by N***N on April 12, 2024*

Great value delivered to your door!

### ⭐⭐⭐⭐⭐ They do the job they were made for.
*by J***. on December 31, 2022*

They work, though it is a good idea to debur the box end as sharp edges sometimes exist from the casting process. Deburring it reduces the chances of insulation damage when pulling wire through them.

## Frequently Bought Together

- SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack
- Sigma Engineered Solutions, Gray, ProConnex TC-511 EMT Set Screw Coupling 1/2-Inch Conduit Fitting, 50-Pack, 50 Count, No Size
- Sigma Electric ProConnex 1901 EMT One-Hole Strap 1/2-Inch, 100-Pack, 1/2 inch, Gray, 100 Count

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**Shop now:** [https://www.desertcart.co.za/products/12894830-sigma-engineered-solutions-proconnex-tc-501-emt-set-screw-connector](https://www.desertcart.co.za/products/12894830-sigma-engineered-solutions-proconnex-tc-501-emt-set-screw-connector)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-03*