---
product_id: 17836261
title: "ProConnex TC-511 EMT Set Screw Coupling 1/2\" 50-Pack"
brand: "sigma engineered solutions"
price: "฿3935"
currency: THB
in_stock: true
reviews_count: 9
category: "Sigma Engineered Solutions"
url: https://www.desertcart.co.th/products/17836261-proconnex-tc-511-emt-set-screw-coupling-1-2-50
store_origin: TH
region: Thailand
---

# 50-pack for bulk projects Zinc die-cast for durability UL & CSA listed, code compliant ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack

**Brand:** sigma engineered solutions
**Price:** ฿3935
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence, build with style.

## Quick Answers

- **What is this?** ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack by sigma engineered solutions
- **How much does it cost?** ฿3935 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/17836261-proconnex-tc-511-emt-set-screw-coupling-1-2-50)

## 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:** Zinc die-cast construction ensures corrosion resistance and long-term reliability in demanding environments.
- • **Bulk Powerhouse:** 50 precision-engineered couplings to keep your projects flowing without interruption.
- • **Compact & Organized:** Comes in a reusable plastic canister with lid—tidy storage that fits seamlessly into your workspace.
- • **Concrete-Tight Seal:** Approved for concrete-tight applications when taped, perfect for secure, moisture-resistant connections.
- • **Code-Ready Confidence:** UL and CSA listings guarantee safety and compliance for professional-grade electrical installations.

## Overview

The ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack offers a professional-grade solution for connecting steel EMT conduit. Featuring durable zinc die-cast construction, these UL and CSA listed couplings are approved for concrete-tight applications when taped, ensuring secure, code-compliant installations. Packaged in a convenient reusable canister, this set is ideal for large-scale electrical projects requiring reliability and efficiency.

## Description

The Sigma ProConnex EMT Set Screw Couplings are used to connect two lengths of steel EMT conduit. These die-cast couplings are suitable for indoor applications and approved for concrete-tight applications when taped.

Review: Nice packaging, arrived early! - I love that these come in a plastic canister with lid, all tidy, for stowing in my shed. I have a bunch of 5-foot 1/2" EMT conduit that I plan to put together in double or triple lengths to top t-post trellises as I get new beds built. I know that eventually I will use dozens of these connectors, so I was glad to get a good price on them. And they came earlier than expected!
Review: Price and listed conduit fittings - Great price and UL listed product. Thank you so much!

## Features

- Connects two lengths of 1/2-in EMT conduit
- Set screw type coupling
- Approved for concrete-tight applications when taped
- Zinc die-cast construction
- Product is UL and CSA listed, suitable for dry locations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006VXC3WS |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #311,593 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #497 in Electrical Conduit Fittings |
| Brand | Sigma Engineered Solutions |
| Color | Gray |
| Connector Type | Coupling |
| Customer Reviews | 4.5 4.5 out of 5 stars (124) |
| Date First Available | January 10, 2012 |
| Exterior Finish | Zinc |
| Global Trade Identification Number | 00031857652401 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.73 pounds |
| Item dimensions L x W x H | 1.33 x 0.92 x 1.05 inches |
| Item model number | TC-511 |
| Manufacturer | Sigma Electric |
| Material | Die Cast Zinc |
| Number of Pieces | 50 |
| Part Number | TC-511 |
| Product Dimensions | 1.33 x 0.92 x 1.05 inches |
| Set Name | 50-Pack |
| Size | No Size |
| Thread Size | ['1/2 inch'] |
| Thread Type | NPT |
| UPC | 031857652401 |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Sigma Engineered Solutions
- **Color:** Gray
- **Connector Type:** Coupling
- **Exterior Finish:** Zinc
- **Item Weight:** 1.73 Pounds
- **Item dimensions L x W x H:** 1.33 x 0.92 x 1.05 inches
- **Material:** Die Cast Zinc
- **Size:** No Size
- **Thread Size:** ['1/2 inch']
- **Thread Type:** NPT

## Images

![ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack - Image 1](https://m.media-amazon.com/images/I/71+egMyOa-L.jpg)

## Questions & Answers

**Q: What size are the screws?**
A: 10/32

**Q: What's the size of the set screw? Is it a S1 or S2?**
A: I believe the question you’re asking is what type of screwdriver is needed it to turn the fastener S2 or a flat head

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice packaging, arrived early!
*by D***R on March 15, 2024*

I love that these come in a plastic canister with lid, all tidy, for stowing in my shed. I have a bunch of 5-foot 1/2" EMT conduit that I plan to put together in double or triple lengths to top t-post trellises as I get new beds built. I know that eventually I will use dozens of these connectors, so I was glad to get a good price on them. And they came earlier than expected!

### ⭐⭐⭐⭐⭐ Price and listed conduit fittings
*by N***N on April 10, 2024*

Great price and UL listed product. Thank you so much!

### ⭐⭐⭐⭐⭐ Great product
*by O***Y on August 15, 2020*

The coupling are very strong and work great. The price very good.

## Frequently Bought Together

- Sigma Electric TC-511 HOSE_PIPE_FITTING, No Size, Gray, 50 Count
- SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack
- 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.th/products/17836261-proconnex-tc-511-emt-set-screw-coupling-1-2-50](https://www.desertcart.co.th/products/17836261-proconnex-tc-511-emt-set-screw-coupling-1-2-50)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-02*