---
product_id: 219440125
title: "4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors"
brand: "daier"
price: "€ 17.78"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory
store_origin: SK
region: Slovakia
---

# M3 fastening screws for secure fit 45# steel for ultimate durability Includes mini hex wrench for easy install 4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

**Brand:** daier
**Price:** € 17.78
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your RC game with steel-strong precision!

## Quick Answers

- **What is this?** 4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors by daier
- **How much does it cost?** € 17.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory)

## Best For

- daier enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium 45# steel with heat and electroplated finish for unmatched strength and corrosion resistance.
- • **All-in-One DIY Kit:** Comes complete with 4 couplings, 8 M3 screws, and a mini hex wrench—everything you need to upgrade instantly.
- • **Effortless Installation:** Flat head design and included tools make assembly quick, so you spend less time prepping and more time flying.
- • **Versatile Compatibility:** Perfectly fits RC airplane, boat, and motor shafts, making your custom builds smoother and more reliable.
- • **Engineered for Precision:** Rigid 6mm flange coupling ensures flawless shaft alignment for your RC models.

## Overview

This 4-piece set of 6mm flange coupling connectors is crafted from durable 45# steel with a polished electroplated finish, designed to provide stable and precise shaft alignment for RC model motors. The package includes 4 couplings, 8 M3 fastening screws, and a mini hex wrench, making it a complete, easy-to-install accessory ideal for DIY RC airplane, boat, and motor projects.

## Description

Parts for RC Airplane Boat ,DIY Model. Perfect accessories for RC Model motor, etc.

## Features

- Durable Material: The coupling connector is made of 45# steel( it is better than copper and aluminum alloys ), heat and electroplated process make it sturdiness and insulation, striking shaft more stable and easy for installment and replacement.
- Widely use: used in model shaft connection, perfect accessories for RC Model motor.
- Size:Inner Diameter: 6mm,Height:12mm,Fixed Hole Screw: M3.
- Package included:4Pcs 6mm Flange Shaft Coupling + 1Pcs M3 Mini Hex Wrench + 8 x M3 Fastening Screw

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Metal |
| Fastener Type | Flange, Hex |
| Thread Size | m3 |
| Exterior Finish | Aluminum,Steel |
| Color | Silver |
| Metal Type | Alloy Steel |
| Finish Type | Polished |
| Brand | daier |
| Thread Type | Iso Metric |
| Inside Thread Size | M3 |
| Thread Style | Metric |
| Thread Class | Class 2A |
| Size | 6mm |
| Item Diameter | 6 Millimeters |
| Number of Pieces | 4 |
| Manufacturer | daier |
| Part Number | H418*4 |
| Item Weight | 1.41 ounces |
| Item model number | H418*4 |
| Finish | Polished |
| Shape | Cylindrical |
| Head Style | Flat |
| Cutting Diameter | 6 Millimeters |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Metal
- **Fastener Type:** Flange, Hex
- **Thread Size:** m3
- **Exterior Finish:** Aluminum,Steel
- **Color:** Silver

## Images

![4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Image 1](https://m.media-amazon.com/images/I/61LBTh3iKML.jpg)

## Available Options

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

## Questions & Answers

**Q: How tall is the 8mm flange?**
A: the flange base is 3mm high and the total height is 13mm.
diameter of the flange is 32mm and the diameter of the post is 16mm.

**Q: Are their any with thread for the  4 little holes?**
A: No, they are not threaded.  I actually drilled out the set ecrew holes and tapped them for 1/4" set screws.  Much more secure.  Ypu coule tap the 4 holes for scres if you want to.

**Q: What is the diameter or radius of the four mounting holes for the 6mm part?**
A: The 4 holes are each about 3/32” diameter, just under 1/8”.

**Q: is the 6mm inner hole threaded to m6? or just a drilled/bored hole in size of 6mm diameter?**
A: A 6mm drill / bored hole.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Inexpensive Metal flanges seem well made and come with screws and allen wrench
*by T***H on May 9, 2025*

I needed a flange for mounting a plastic fan unit that came with a flimsy flange molded in, that had failed.I dremelled out the old flange and added one of these metal flanges attaching it with screws and glueBonus It comes with an allen wrench of the right size for the tiny set screws supplied

### ⭐⭐⭐⭐⭐ Lure turner
*by M***E on May 19, 2025*

Used these to make a couple of lure turners. Worked very well. Solid and seem durable. Great value

### ⭐⭐⭐⭐⭐ buyer made an error in review
*by R***S on August 30, 2023*

I received this item and was very pleased with purchase---however; I checked the package and found only THREE shaft locking screws instead of needed EIGHT--I noted that in my 5STAR review earlier----I have looked further and discovered a small tear in the plastic envelope---only three set screws---my daughter has since looked in the SHIPPING envelope and---found FIVE teeny locking screws deep in the corners of the SHIPPING envelope. So, I hollered before I really looked and owe the seller a 5 STAR complete review, good item, buyer jumped to wrong conclusion!

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**Shop now:** [https://www.desertcart.sk/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory](https://www.desertcart.sk/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-18*