---
product_id: 227916783
title: "4Pcs 3mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors"
brand: "daier"
price: "71 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/227916783-4pcs-3mm-flange-coupling-connector-rigid-guide-model-coupler-accessory
store_origin: RO
region: Romania
---

# M3 screw fixation for secure fit 45# steel for ultimate durability Includes mini hex wrench + screws 4Pcs 3mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

**Brand:** daier
**Price:** 71 Lei
**Availability:** ✅ In Stock

## Summary

> ⚙️ Lock in precision, power your passion!

## Quick Answers

- **What is this?** 4Pcs 3mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors by daier
- **How much does it cost?** 71 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/227916783-4pcs-3mm-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 treatment for superior strength and insulation.
- • **All-in-One DIY Kit:** Comes complete with 4 couplings, 8 fastening screws, and a mini hex wrench for effortless installation.
- • **Effortless Maintenance:** Quick replacement design keeps your model running smoothly without downtime.
- • **Versatile Compatibility:** Perfectly fits 3mm shafts, ideal for RC airplanes, boats, and custom motor projects.
- • **Engineered for Precision:** Rigid 3mm flange coupling ensures flawless shaft alignment for your RC models.

## Overview

This 4-piece set of 3mm flange coupling connectors is crafted from durable 45# steel with heat and electroplated finishing, providing exceptional strength and insulation. Designed for RC model motors, each kit includes 4 couplings, 8 M3 fastening screws, and a mini hex wrench, ensuring secure shaft connections and easy installation. Ideal for DIY enthusiasts seeking reliable, high-performance shaft axis fittings.

## 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: 3mm,Height:12mm,Fixed Hole Screw: M3.
- Package included:4Pcs 3mm 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 | M 3 |
| Exterior Finish | Aluminum,Steel |
| Color | Silver |
| Metal Type | Alloy Steel, Aluminum, Copper |
| Brand | daier |
| Item Weight | 0.05 Kilograms |
| Thread Type | Iso Metric |
| Inside Thread Size | M3 |
| Thread Style | Metric, External |
| Thread Class | Fine |
| Size | 3mm |
| Item Diameter | 3 Millimeters |
| Number of Pieces | 4 |
| Manufacturer | daier |
| Part Number | H415*4 |
| Item Weight | 1.58 ounces |
| Item model number | H415*4 |
| Shape | Round |
| Head Style | Flat |
| Cutting Diameter | 3 Millimeters |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Metal
- **Fastener Type:** Flange, Hex
- **Thread Size:** M 3
- **Exterior Finish:** Aluminum,Steel
- **Color:** Silver

## Images

![4Pcs 3mm 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/61OOnvEPEuL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.ro/products/227916783-4pcs-3mm-flange-coupling-connector-rigid-guide-model-coupler-accessory](https://www.desertcart.ro/products/227916783-4pcs-3mm-flange-coupling-connector-rigid-guide-model-coupler-accessory)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-20*