---
product_id: 42331265
title: "SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4\" 25-Pack"
brand: "sigma engineered solutions"
price: "฿3219"
currency: THB
in_stock: true
reviews_count: 3
url: https://www.desertcart.co.th/products/42331265-sigma-engineered-solutions-proconnex-tc-512-emt-set-screw-coupling
store_origin: TH
region: Thailand
---

# 25-pack for bulk projects Die-cast zinc alloy durability Tri-combo screws for easy install SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4" 25-Pack

**Brand:** sigma engineered solutions
**Price:** ฿3219
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence—bulk durability meets effortless installation!

## Quick Answers

- **What is this?** SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4" 25-Pack by sigma engineered solutions
- **How much does it cost?** ฿3219 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/42331265-sigma-engineered-solutions-proconnex-tc-512-emt-set-screw-coupling)

## 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

- • **Built to Last:** Crafted from robust die-cast zinc alloy, engineered to withstand wear and deliver long-term reliability.
- • **Bulk Power Move:** Get 25 high-quality couplings in one pack—perfect for scaling your projects without constant reordering.
- • **Effortless Assembly:** Tri-combo screws included for quick, hassle-free installation—no extra tools or parts needed.
- • **Certified Confidence:** UL and CSA listed for guaranteed safety compliance—work smarter knowing your connections meet top industry standards.
- • **Seamless Compatibility:** Specifically designed for 3/4-inch EMT conduit, ensuring a secure, concrete-tight connection in dry locations.

## Overview

The SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4" 25-Pack offers a durable, zinc die-cast solution for securely connecting 3/4-inch EMT conduits. Featuring tri-combo screws for easy installation and certified by UL and CSA, this bulk pack ensures reliable, code-compliant electrical conduit connections ideal for dry location applications.

## Description

Upgrade your electrical installations with the Sigma Engineered Solutions ProConnex TC-512 EMT Set Screw Coupling, available in a convenient 25-pack. This coupling is designed to seamlessly connect two lengths of 3/4-inch EMT conduit, providing secure and reliable connections for electrical wiring setups. Featuring a set screw type design with tri-combo screws, installation is made easy while ensuring a tight grip. Concrete-tight when taped, this coupling is suitable for dry location applications, ensuring versatility in usage. Crafted from durable zinc die-cast material, it ensures long-lasting performance. With UL and CSA listings, this product meets safety standards and ensures peace of mind

## Features

- DURABLE CONSTRUCTION: Made from die-cast zinc alloy for long-lasting performance
- EASY INSTALLATION: Tri-combo screws included for convenient installation
- COMPATIBILITY: For seamless connection of 3/4-inch EMT Conduit in dry location applications
- MULTI-PACK: Includes 25 connectors for multiple installations
- CERTIFIED SAFETY: UL and CSA listed, ensuring compliance with stringent safety standards for peace of mind

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sigma Electric |
| Part Number | TC-512 |
| Item Weight | 1.73 pounds |
| Product Dimensions | 1.71 x 1.14 x 1.24 inches |
| Item model number | TC-512 |
| Is Discontinued By Manufacturer | No |
| Size | No Size |
| Color | Gray |
| Material | Zinc |
| Item Package Quantity | 1 |
| Number Of Pieces | 25 |
| Included Components | Sigma Electric ProConnex TC-512 EMT Set Screw Coupling 3/4-Inch, 25-Pack |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Images

![SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4" 25-Pack - Image 1](https://m.media-amazon.com/images/I/71+egMyOa-L.jpg)

## Questions & Answers

**Q: how many couplings in package/box?**
A: Box/25

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good use
*by Y***G on December 3, 2023*

Will buy again

### ⭐⭐⭐⭐⭐ EMT Conduit is Easily Re-Purposed
*by G***D on June 10, 2021*

The all zinc cast couplers are much better to use if you live in a humid climate. Some of the steel couplers are glavanized, but some are plain steel. EMT is not rated for weather exposed use, but under an eave, on a porch is OK, but a humid or coastal climate will corrode the heck out of it. The cast zinc fittings are worth the extra cost, in those situations.I've used EMT thinwall conduit for decades in construction, and the numerous shops I've owned or leased, but it's only been since I retired due to a disabilty that I've discovered what a wonderfully re-purposeable material.The first discovery was 1/2" PVC pipe telescopes over 1/2" EMT conduit. Slide short pieces of scrap PVC over the EMT, then use PVC fittings to built most anything you can imagine. Cover it with poly tarp for some cheap storage, (I added a roof & second story to a UPS size laundry truck for storage of materials. Pallets and some scrap waferboard, and it has a great floor, as well.). Cover it with clear poly sheetind and instant greenhouse.Keep your eyes open at garage/estate sales, and pick up a conduit bender, and you can duplicate my latest EMT project. I have a 93 year old next neighbor, who I've 'adopted'. To make it safer for her to come visit, and see the flowers and such my wife plants, I've been making EMT arches over our gates, and across our driveway, to Velcro our garden hoses to, so they are off the sidewalks and driveway.It also makes cleaning them with the leaf blower, since I'm not fighting hoses, blocking debris.These two are only a few of the things I've used EMT for, other than electrical. It's easily scavenged from commercial remodels, (smaller strip mall remodels are the best); ask for the job boss, and ask him if you can scavenge materials for re-use. Emphasize you're reusing it. They're more likely to be generous than if they think you're just going to scrap it for money. I have literally been given thousands of dollars worth of materials, just by asking to scavenge. (Come dressed for work, with boots, gloves, etc, and they're less likely to be worried you're a clueless injury, waiting to happen!)

### ⭐⭐⭐⭐⭐ Perfect fit,and ease of use
*by G***Y on June 9, 2022*

They'er stronge and light weight

## Frequently Bought Together

- SIGMA ENGINEERED SOLUTIONS ProConnex TC-512 EMT Set Screw Coupling 3/4" 25-Pack
- SIGMA ENGINEERED SOLUTIONS ProConnex TC-502 EMT Set Screw Connector 3/4", Gray, 25-Pack
- SIGMA ENGINEERED SOLUTIONS ProConnex 1902 EMT One-Hole Strap, 3/4-Inch, 50-Pack (Gray)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-28*