---
product_id: 729018606
title: "4Pcs 8mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors"
brand: "daier"
price: "$58.35"
currency: USD
in_stock: true
reviews_count: 5
category: "Daier"
url: https://www.desertcart.ec/products/729018606-4pcs-8mm-flange-coupling-connector-rigid-guide-model-coupler-accessory
store_origin: EC
region: Ecuador
---

# Precise 8mm inner diameter fit Includes M4 hex wrench & screws 45# steel for ultimate durability 4Pcs 8mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

**Brand:** daier
**Price:** $58.35
**Availability:** ✅ In Stock

## Summary

> ⚙️ Lock in precision, power your passion!

## Quick Answers

- **What is this?** 4Pcs 8mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors by daier
- **How much does it cost?** $58.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/729018606-4pcs-8mm-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 corrosion resistance.
- • **Trusted by Pros:** Highly rated (4.6/5) for quality and fit, making it the go-to choice for serious hobbyists and model engineers.
- • **Ready-to-Install Kit:** Comes complete with 4 flange couplings, 8 M4 fastening screws, and a mini hex wrench for hassle-free assembly.
- • **Versatile Compatibility:** Perfectly sized for 8mm shafts, ideal for DIY RC models, airplanes, boats, and motorized projects.
- • **Engineered for Precision:** Flawless machining with chamfered guides ensures smooth, secure shaft alignment every time.

## Overview

This 4-piece set of 8mm flange coupling connectors is crafted from durable 45# steel with heat and electroplated finishing, ensuring exceptional strength and corrosion resistance. Designed for precise shaft alignment in RC models and DIY motor projects, it includes all necessary screws and a mini hex wrench for easy installation. With a 4.6-star rating and flawless machining, it’s the professional’s choice for reliable, long-lasting shaft couplings.

## Description

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

Review: Perfect Machining and Great Design – Each Flange Was Flawless The manufacturer can be rightfully proud of the superior craftsmanship of the workers and high Quality Control inspections. Each flange was perfect: dimensions correct, NO dangerous sharp burrs left over from machining, chamfered guides for axle hole, chamfered beveled guide to screw threads for easier screw starting, and smooth screwing perfectly shaped internal threads. It was really polite, or something, that the manufacturer included the tiny Allen Wrench for the M3 socket head grub screws.
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.

## 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: 8mm,Height:13mm,Fixed Hole Screw: M4.
- Package included:4Pcs 8mm Flange Shaft Coupling + 1Pcs M4 Mini Hex Wrench + 8 x M4 Fastening Screw

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08335MYGW |
| ASIN  | B08335MYGW |
| Brand | daier |
| Customer Reviews | 4.6 4.6 out of 5 stars (762) |
| Customer reviews | 4.6 4.6 out of 5 stars (762) |
| Date First Available | 17 July 2024 |
| Item model number | H420*4 |
| Item model number  | H420*4 |
| Manufacturer | daier |
| Manufacturer  | daier |
| Package Dimensions | 9.4 x 8.3 x 3.9 cm; 110 g |
| Package Dimensions  | 9.4 x 8.3 x 3.9 cm; 110 g |

## Product Details

- **Colour:** Silver
- **Exterior finish:** Aluminum,Steel
- **Fastener type:** Flange
- **Material:** Metal
- **Thread size:** M 4

## Images

![4Pcs 8mm 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/61upRBXCDeL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***R on 10 February 2026*

Perfect Machining and Great Design – Each Flange Was Flawless The manufacturer can be rightfully proud of the superior craftsmanship of the workers and high Quality Control inspections. Each flange was perfect: dimensions correct, NO dangerous sharp burrs left over from machining, chamfered guides for axle hole, chamfered beveled guide to screw threads for easier screw starting, and smooth screwing perfectly shaped internal threads. It was really polite, or something, that the manufacturer included the tiny Allen Wrench for the M3 socket head grub screws.

### ⭐⭐⭐⭐⭐ 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 S***E on 15 December 2025*

Arrived as described

## Frequently Bought Together

- 4Pcs 8mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors
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**Shop now:** [https://www.desertcart.ec/products/729018606-4pcs-8mm-flange-coupling-connector-rigid-guide-model-coupler-accessory](https://www.desertcart.ec/products/729018606-4pcs-8mm-flange-coupling-connector-rigid-guide-model-coupler-accessory)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-20*