---
product_id: 402644913
title: "4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors"
brand: "daier"
price: "E£ 4910"
currency: EGP
in_stock: true
reviews_count: 5
category: "Daier"
url: https://www.desertcart.com.eg/products/402644913-4pcs-4mm-flange-coupling-connector-rigid-guide-model-coupler-accessory
store_origin: EG
region: Egypt
---

# M3 Precision Fastening 45# Alloy Steel Strength Complete 4-Piece DIY Kit 4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

**Brand:** daier
**Price:** E£ 4910
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate Your RC Builds with Industrial Precision & Rock-Solid Stability!

## Quick Answers

- **What is this?** 4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors by daier
- **How much does it cost?** E£ 4910 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/402644913-4pcs-4mm-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

- • **All-in-One Installation Kit:** Includes 4 flange couplings, 8 fastening screws, and a mini hex wrench for effortless assembly and replacement.
- • **Industrial-Grade Durability:** Crafted from premium 45# steel with heat and electroplated finish for unmatched sturdiness and insulation.
- • **Precision Fit for 4mm Shafts:** Engineered with exact 4mm inner diameter and M3 screw holes ensuring seamless shaft alignment and stability.
- • **Trusted by Makers & Innovators:** Highly rated with 4.6 stars from 774 reviews, solving real-world project challenges with reliability.
- • **Versatile RC Model Compatibility:** Perfectly tailored for RC airplanes, boats, and DIY motor projects to elevate your build quality.

## Overview

This 4-piece flange coupling set is crafted from durable 45# alloy steel with a heat and electroplated finish, designed for precise 4mm shaft connections in RC models. The package includes all necessary screws and a hex wrench, making it an essential upgrade for hobbyists seeking reliable, professional-grade motor shaft fittings.

## Description

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

Review: Fits the three 8mm rods that I needed them for. Threaded screw fits properly and snugly. I had a bit of a laugh in that the resealable package ("ziploc" style) was heat-sealed shut BELOW the reseal, so after breaking the heat-seal (cutting it off) you couldn't reseal it anymore.
Review: My son used these for a high school underwater ROV project to attach the propellers. Solved a big problem, fast delivery and decent quality.

## 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: 4mm,Height:12mm,Fixed Hole Screw: M3.
- Package included:4Pcs 4mm Flange Shaft Coupling + 1Pcs M3 Mini Hex Wrench + 8 x M3 Fastening Screw

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08334VLZG |
| Best Sellers Rank | #185,595 in Toys & Games ( See Top 100 in Toys & Games ) #2,136 in Model Building Kits |
| Brand | daier |
| Colour | Silver |
| Country of Origin | USA |
| Exterior Finish | Aluminum,Steel |
| Fastener Type | Coupling, Hex |
| Finish Type | Unfinished |
| Inside Thread Size | M3 |
| Item Diameter | 4 Millimetres |
| Item Weight | 30 g |
| Item model number | H416*4 |
| Manufacturer | daier |
| Material | Metal |
| Maximum Shear Strength | [INFERRED: Higher than aluminum or copper alloys] |
| Metal Type | Alloy Steel |
| Number of Pieces | 4 |
| Size | small |
| Thread Class | M3 |
| Thread Coverage | Unthreaded |
| Thread Size | M3 |
| Thread Style | Right Hand |
| Thread Type | Iso Metric |

## Product Details

- **Brand:** daier
- **Colour:** Silver
- **Exterior Finish:** Aluminum,Steel
- **Fastener Type:** Coupling, Hex
- **Finish Type:** Unfinished
- **Item Weight:** 30 Grams
- **Item dimensions L x W x H:** 50 x 15 x 40 Millimeters
- **Material:** Metal
- **Metal Type:** Alloy Steel
- **Thread Size:** M3

## Images

![4Pcs 4mm 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/31MXIOSqi7L.jpg)
![4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Image 2](https://m.media-amazon.com/images/I/41+h3o+WQhL.jpg)
![4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Image 3](https://m.media-amazon.com/images/I/51SFFJNnSWL.jpg)
![4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Image 4](https://m.media-amazon.com/images/I/61GCOE0xZ8L.jpg)
![4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Image 5](https://m.media-amazon.com/images/I/61PprJJW0AL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***H on 17 April 2024*

Fits the three 8mm rods that I needed them for. Threaded screw fits properly and snugly. I had a bit of a laugh in that the resealable package ("ziploc" style) was heat-sealed shut BELOW the reseal, so after breaking the heat-seal (cutting it off) you couldn't reseal it anymore.

### ⭐⭐⭐⭐⭐ Review
*by K***H on 25 August 2025*

My son used these for a high school underwater ROV project to attach the propellers. Solved a big problem, fast delivery and decent quality.

### ⭐⭐⭐⭐⭐ Review
*by D***. on 30 September 2025*

Great little shaft collars with flanges. Dimensions were accurate and surface finish is good. They worked so well I got a second set.

## Frequently Bought Together

- 4Pcs 4mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors
- DC 12V Reversible High Reduction Electric Motor 15-200RPM Outer Diameter 20MM(200RPM)

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-02-20*