---
product_id: 44348703
title: "Sigma ProConnex 41309 1/2\" - 1\" Ground Clamp, 1-Pack"
brand: "sigma engineered solutions"
price: "VT4601"
currency: VUV
in_stock: true
reviews_count: 13
category: "Sigma Engineered Solutions"
url: https://www.desertcart.vu/products/44348703-sigma-proconnex-41309-1-2-1-ground-clamp-1-pack
store_origin: VU
region: Vanuatu
---

# Fits 1/2" to 1" pipes Zinc-plated steel screws Copper alloy durability Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack

**Brand:** sigma engineered solutions
**Price:** VT4601
**Availability:** ✅ In Stock

## Summary

> ⚡ Ground your system like a pro—secure, certified, and built to last!

## Quick Answers

- **What is this?** Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack by sigma engineered solutions
- **How much does it cost?** VT4601 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/44348703-sigma-proconnex-41309-1-2-1-ground-clamp-1-pack)

## 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

- • **Compact Yet Mighty:** Sleek modern design with a tensile strength of 500 psi fits seamlessly into any professional setup without bulk.
- • **Certified Safety You Can Trust:** UL and CSA listed for guaranteed compliance with the highest electrical grounding safety standards.
- • **Rock-Solid Grounding Connection:** Securely connects bare wires to copper, steel pipes, or tubing, protecting your home and electronics from electrical faults.
- • **Built to Last, Engineered to Perform:** Copper alloy body with zinc-plated steel screws ensures unmatched durability and corrosion resistance.
- • **Universal Fit for Maximum Versatility:** Compatible with pipe sizes from 1/2" to 1", wire gauges #10 to #2, and rebar 5/8" to 3/4"—one clamp to rule them all.

## Overview

The Sigma ProConnex 41309 Ground Clamp is a premium copper alloy grounding clamp designed for reliable electrical connections. It fits pipe sizes from 1/2" to 1", supports wire gauges #10 to #2, and rebar sizes 5/8" to 3/4". Featuring zinc-plated steel screws for corrosion resistance and UL/CSA certification, it guarantees safety and durability for professional-grade grounding solutions.

## Description

Upgrade your electrical connections with the Sigma Engineered Solutions ProConnex 41309 Ground Clamp. Designed to provide secure connectivity, this clamp effortlessly connects bare wires to copper, steel water pipes or tubing, ensuring reliable grounding for your electrical systems. Compatible with pipe sizes from 1/2-inch to 1-inch, wire ranging from #10 to #2, and rebar sizes from 5/8-inch through 3/4-inch. Crafted from durable copper alloy, featuring zinc-plated steel screws, this clamp ensures long-lasting performance. Product is UL and CSA listed ensuring safety and reliability.

Review: Well built, worked fine on 1 inch gas line - Worked well as a grounding clamp on a 1" gas pipe. You have to completely unscrew it to get it on a 1" pipe, but it tightens down just fine and is solidly constructed.
Review: Get it Grounded, uh. Yeah. - I've been using these grounding clamps for a while. They really come in handy when you need to ground stuff like a generator or the electronic circuit in your home. I had some serious blow outs and a lightening bolt one time. Grounding your system really is a life, time and money saver. If you're not properly grounded, you could lose all your home electronics and the grid system. These clamps will keep your electronic apparatus happy and running.. . even your washer.

## Features

- DURABLE CONSTRUCTION: Made from copper alloy with zinc-plated steel screws for long-lasting performance.
- SECURE CONNECTIONS: Ensures reliable grounding for electrical systems.
- VERSATILE COMPATIBILITY: Fits pipe or copper rod sizes 1/2-inch to 1-inch, wire range #10 - #2, and rebar range 5/8-inch to 3/4-inch.
- CERTIFIED SAFETY: UL and CSA listed, ensuring compliance with stringent safety standards for peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YEIKFW |
| Best Sellers Rank | #188,519 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #234 in Pipe Clamp Tools |
| Brand | Sigma Engineered Solutions |
| Brand Name | Sigma Engineered Solutions |
| Color | Bar |
| Customer Reviews | 4.7 out of 5 stars 1,189 Reviews |
| Global Trade Identification Number | 00031857413095 |
| Included Components | Sigma Electric ProConnex 41309 Ground Clamp 1/2 to 1-Inch, 1-Pack |
| Item Dimensions | 2.56 x 2.28 x 0.65 inches |
| Item Type Name | Sigma Electric ProConnex 41309 Ground Clamp 1/2 to 1-Inch, 1-Pack |
| Item dimensions L x W x H | 2.56 x 2.28 x 0.65 inches |
| Manufacturer | Sigma Engineereed Solutions |
| Manufacturer Part Number | 41309 |
| Manufacturer Warranty Description | Warranty |
| Material | Copper Alloy |
| Material Type | Copper Alloy |
| Model Number | 41309 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Modern |
| Style Name | Modern |
| Tensile Strength | 500 psi |
| UPC | 031857413095 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Copper Alloy
- **Brand:** Sigma Engineered Solutions
- **Item dimensions L x W x H:** 2.56 x 2.28 x 0.65 inches
- **Color:** Bar
- **Style:** Modern
- **Tensile Strength:** 500 Pounds Per Square Inch
- **UPC:** 031857413095
- **Global Trade Identification Number:** 00031857413095
- **Manufacturer:** Sigma Electric

## Images

![Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61M6q29SJjL.jpg)
![Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack - Image 2](https://m.media-amazon.com/images/I/71k0r6wfp7L.jpg)
![Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack - Image 3](https://m.media-amazon.com/images/I/71F1ZyBGhkL.jpg)
![Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack - Image 4](https://m.media-amazon.com/images/I/71Eipeaj1zL.jpg)
![Sigma ProConnex 41309 1/2" - 1" Ground Clamp, 1-Pack - Image 5](https://m.media-amazon.com/images/I/71-mWbHvmBL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well built, worked fine on 1 inch gas line
*by T***D on May 27, 2026*

Worked well as a grounding clamp on a 1" gas pipe. You have to completely unscrew it to get it on a 1" pipe, but it tightens down just fine and is solidly constructed.

### ⭐⭐⭐⭐⭐ Get it Grounded, uh. Yeah.
*by R***R on April 16, 2024*

I've been using these grounding clamps for a while. They really come in handy when you need to ground stuff like a generator or the electronic circuit in your home. I had some serious blow outs and a lightening bolt one time. Grounding your system really is a life, time and money saver. If you're not properly grounded, you could lose all your home electronics and the grid system. These clamps will keep your electronic apparatus happy and running.. . even your washer.

### ⭐⭐⭐⭐⭐ Quality Clamp
*by H***E on January 4, 2026*

Fit great on 3/4" galvanized pipe. Not a lot more to add, since this isn't some complex-multi-featured item.

## Frequently Bought Together

- SIGMA ENGINEERED SOLUTIONS ProConnex 41309 Ground Clamp 1/2" - 1"
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- THE CIMPLE CO 25 FT - 10 AWG Solid Copper Wire - 10 Gauge Industrial THHN/THWN - 25 FT Insulated Grounding Wire - Green, 25 Feet (7 Meters)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-08-20*