---
product_id: 547774969
title: "10 Packs 3/8\"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4\""
brand: "nidaye"
price: "€ 22.58"
currency: EUR
in_stock: true
reviews_count: 11
category: "Nidaye"
url: https://www.desertcart.pt/products/547774969-10-packs-3-8-16-rod-coupling-nuts-unc-threaded
store_origin: PT
region: Portugal
---

# 3/8"-16 UNC Thread Size Fully Threaded for Secure Join Zinc-Plated Low Carbon Steel 10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4"

**Brand:** nidaye
**Price:** € 22.58
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence — The Coupling Nut That Means Business

## Quick Answers

- **What is this?** 10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" by nidaye
- **How much does it cost?** € 22.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/547774969-10-packs-3-8-16-rod-coupling-nuts-unc-threaded)

## Best For

- nidaye enthusiasts

## Why This Product

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

## Key Features

- • **Robust Zinc-Plated Steel Build:** Crafted from durable low carbon steel with corrosion-resistant zinc plating for long-lasting indoor use.
- • **Precision Threading for Flawless Fit:** Engineered with clean, consistent 3/8"-16 UNC threads to ensure seamless rod coupling every time.
- • **Fully Threaded Length for Maximum Grip:** 1-3/4" length fully threaded to create tight, reliable connections between rods—no slippage, no compromise.
- • **Bulk Pack for Professional & DIY Projects:** 10-pack offering excellent value and ready supply for multiple applications, from industrial setups to creative builds.
- • **Hexagonal Design for Effortless Tightening:** 9/16" hex shape compatible with standard wrenches, making installation quick and hassle-free.

## Overview

NIDAYE’s 10-pack 3/8"-16 UNC threaded hex coupling nuts deliver precision-engineered, fully threaded rod connectors made from zinc-plated low carbon steel. Designed for secure, corrosion-resistant indoor use, these 1-3/4" coupling nuts feature a hex drive for easy tightening and come in a bulk pack ideal for professionals and DIY enthusiasts seeking reliable, high-quality fasteners.

## Description

Product description Coupling Nuts are Also called couplers and rod couplings, coupling nuts are used for quickly joining two pieces of threaded rod. They are fully threaded, allowing the two rods to meet in the middle, forming a tight connection. They are similar to hex nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod. More Fasteners are available! Rod couplding nut UNC Thread Size, NOT metric 1"-8, rod coupling nuts for quickly joining two pieces of 1" inch threaded rod Excellent Material Low carbon steel with zinc plated finishing, good for use indoors, in non-corrosie environments Widely function Fully threaded, allowing the two rods to meet in the middle, forming a tight connection

Review: ⭐️⭐️⭐️⭐️⭐️ Excellent Value and Solid Quality - These NIDAYE 1/4"-20 coupling nuts are exactly what I needed for my project. The threading is clean and consistent, and they fit perfectly with standard 1/4"-20 rods and bolts without any issues. The hex shape makes them easy to tighten, and they feel durable and well-made—not flimsy or weak. The 50-pack is a great value and gives you plenty of nuts for multiple uses. If you’re looking for reliable, well-threaded coupling nuts for DIY or professional use, these are a great choice. Highly recommend!
Review: good bulk buy price, zero flaws or defects and fast shipping. - fast shipping, exactly as pictured and described. exactly 50 with zero flaws or defects. the $9.00usd was a good price. using them with uni-strut and pallet racking to build a free floating player game cage that supports the player while playing flying vr games. very happy with my purchase.

## Features

- Thread Size: 3/8"-16, rod coupling nuts for quickly joining two pieces of 3/8" inch threaded rod
- Widely function:Fully threaded, allowing the two rods to meet in the middle, forming a tight connection
- Material: Low carbon steel with zinc plated finishing, good for use indoors, in non-corrosive environments
- Lenght: 1-3/4" | Width across the flats - 9/16" (Requires 9/16" Hex Wrench)
- Item type: Hex coupling nut

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C7QGP679 |
| Best Sellers Rank | #24,902 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Coupling Nuts |
| Brand | NIDAYE |
| Color | silver |
| Compatible Groove Diameter | 0.38 Inches |
| Customer Reviews | 4.9 out of 5 stars 152 Reviews |
| Drive Style | External Hex |
| Exterior Finish | Zinc |
| Fastener Type | Coupling |
| Finish Types | zinc plated |
| Grade Rating | commercial |
| Inside Thread Size | 3/8-16 |
| Item Diameter | 0.38 Inches |
| Item Dimensions | 1.75 x 0.4 x 0.4 inches |
| Item Weight | 380 Grams |
| Manufacturer | NIDAYE |
| Material | Low Carbon Steel |
| Material Type | Low Carbon Steel |
| Metal Type | Low Carbon Steel |
| Number Of Items | 10 |
| Number of Pieces | 10 |
| Part Number | N-CP-3/8 |
| Screw Head Style | hexagon |
| Size Name | 3/8"-16 |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 3/8"-16 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse |

## Product Details

- **Color:** silver
- **Exterior Finish:** Zinc
- **Fastener Type:** Coupling
- **Material:** Low Carbon Steel
- **Thread Size:** 3/8"-16

## Images

![10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Image 1](https://m.media-amazon.com/images/I/51JTIt7y31L.jpg)
![10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Image 2](https://m.media-amazon.com/images/I/61NL6gBRY0L.jpg)
![10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Image 3](https://m.media-amazon.com/images/I/61dOSjoVyoL.jpg)
![10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Image 4](https://m.media-amazon.com/images/I/61DMfwXpYnL.jpg)
![10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Image 5](https://m.media-amazon.com/images/I/61+TtZvHa1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Excellent Value and Solid Quality
*by B***H on February 2, 2026*

These NIDAYE 1/4"-20 coupling nuts are exactly what I needed for my project. The threading is clean and consistent, and they fit perfectly with standard 1/4"-20 rods and bolts without any issues. The hex shape makes them easy to tighten, and they feel durable and well-made—not flimsy or weak. The 50-pack is a great value and gives you plenty of nuts for multiple uses. If you’re looking for reliable, well-threaded coupling nuts for DIY or professional use, these are a great choice. Highly recommend!

### ⭐⭐⭐⭐⭐ good bulk buy price, zero flaws or defects and fast shipping.
*by H***K on February 11, 2026*

fast shipping, exactly as pictured and described. exactly 50 with zero flaws or defects. the $9.00usd was a good price. using them with uni-strut and pallet racking to build a free floating player game cage that supports the player while playing flying vr games. very happy with my purchase.

### ⭐⭐⭐⭐⭐ A pleasure to use.
*by B***O on May 11, 2025*

These coupling nuts worked perfectly. Seems to be very well made and the threads were good. I had no trouble with threading these onto the carriage bolts that I was using them on. I tack welded a wing nut on one end to make them work as an extended fastener to reach into a metal channel that secured the carriage bolts. The quality of the thread taps and plating were great, not one issue with any of them.

## Frequently Bought Together

- NIDAYE 10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4"
- Wensilon(20 pcs) 1/4"-20 Coupling Nuts zinc, Extended Hexagon Plated Steel Rod Coupling Nuts
- Zadery Zinc Plated 3/8"-16 Fully Threaded Steel Rod, 4 Pieces 12" Length Long Threaded Screw

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-05-08*