---
product_id: 807244064
title: "M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs"
brand: "qjuwhua"
price: "NT$1810"
currency: TWD
in_stock: true
reviews_count: 8
category: "Qjuwhua"
url: https://www.desertcart.tw/products/807244064-m16-x-50-mm-long-hex-coupling-nut-zinc-plated
store_origin: TW
region: Taiwan
---

# M16 precision threading Zinc-plated corrosion resistance Hexagonal deep nut design M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs

**Brand:** qjuwhua
**Price:** NT$1810
**Availability:** ✅ In Stock

## Summary

> 🔩 Connect with confidence — the pro’s choice for seamless fastening!

## Quick Answers

- **What is this?** M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs by qjuwhua
- **How much does it cost?** NT$1810 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/807244064-m16-x-50-mm-long-hex-coupling-nut-zinc-plated)

## Best For

- qjuwhua enthusiasts

## Why This Product

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

## Key Features

- • **Durable Zinc Plating:** Enhanced corrosion resistance ensures longevity in home, office, or industrial use.
- • **Versatile 6-Piece Set:** Ideal for multiple projects—stack, connect, or extend with confidence.
- • **Precision M16 Threading:** Engineered for smooth, reliable fastening with ISO metric Class 6H threads.
- • **Hexagonal Deep Nut Profile:** Provides superior grip and torque for professional-grade assembly.
- • **Trusted Commercial Grade Steel:** Carbon steel construction built to withstand demanding workshop and construction environments.

## Overview

This set of six M16 x 50 mm hex coupling nuts features precision ISO metric threading and a durable zinc-plated carbon steel build. Designed for professional and DIY use, their hexagonal deep nut profile ensures superior grip and torque, making them perfect for industrial, workshop, or home projects requiring reliable, corrosion-resistant fasteners.

## Description

a

Review: Quality product - Quality product, well made and delivered on time
Review: Good but not perfect - I got these couplers hoping to stack three together to make a long leg for mounting an instrument. They are well made and threaded nice and cleanly, but unfortunately the hole through the middle is not absolutely precisely centered, so stacking three together means they don’t quite match up in the way I intended. Nonetheless I will use them for other purposes and they will be fine.

## Features

- a

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0G2GLRVXW |
| Best Sellers Rank | 10,285 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Hex & Machine Screw Nuts |
| Brand Name | qjuwhua |
| Colour | siliver |
| Compatible Groove Diameter | 16 Millimeters |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (76) |
| Exterior Finish | Zinc |
| Fastener Type | Coupling |
| Finish Types | Zinc |
| Grade Rating | Commercial |
| Inside Thread Size | M16 |
| Item Diameter | 16 Millimetres |
| Manufacturer | qjuwhua |
| Manufacturer Part Number | 008-24 |
| Material Type | Carbon Steel |
| Metal | Carbon Steel |
| Number of Pieces | 6 |
| Screw Head Style | Hex |
| Set Name | Set of 6 |
| Size | M16 x 50 mm 6 PCS |
| Thread Class | Class 6H |
| Thread Size | M16 |
| Thread Style | Metric |
| Thread Type | ISO Metric |
| Unit Count | 6.0 Count |

## Product Details

- **Brand:** qjuwhua
- **Colour:** siliver
- **Exterior finish:** Zinc
- **Fastener type:** Coupling
- **Finish type:** Zinc
- **Inside-thread size:** M16
- **Material:** Carbon Steel
- **Metal type:** Carbon Steel
- **Thread size:** M16
- **Thread type:** ISO Metric

## Images

![M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs - Image 1](https://m.media-amazon.com/images/I/71uyaadFkqL.jpg)
![M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs - Image 2](https://m.media-amazon.com/images/I/71C7rOvwz5L.jpg)
![M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs - Image 3](https://m.media-amazon.com/images/I/71p4glXz4BL.jpg)
![M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs - Image 4](https://m.media-amazon.com/images/I/719nBBCuS6L.jpg)
![M16 x 50 mm Long Hex Coupling Nut Zinc Plated Steel Female Threaded Bar Rod Nuts Studding Connector Fasteners Hexagonal Deep Nut Silver For Home Office Workshop Industrial Constructor 6 Pcs - Image 5](https://m.media-amazon.com/images/I/71nE+zmlhQL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product
*by C***N on 20 February 2026*

Quality product, well made and delivered on time

### ⭐⭐⭐⭐ Good but not perfect
*by C***Y on 23 February 2026*

I got these couplers hoping to stack three together to make a long leg for mounting an instrument. They are well made and threaded nice and cleanly, but unfortunately the hole through the middle is not absolutely precisely centered, so stacking three together means they don’t quite match up in the way I intended. Nonetheless I will use them for other purposes and they will be fine.

### ⭐⭐⭐ Pitch size for thread because they differ in thread size no good just saying Corse
*by G***. on 1 February 2026*

No pitch size stated

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**Shop now:** [https://www.desertcart.tw/products/807244064-m16-x-50-mm-long-hex-coupling-nut-zinc-plated](https://www.desertcart.tw/products/807244064-m16-x-50-mm-long-hex-coupling-nut-zinc-plated)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-06-13*