---
product_id: 238485943
title: "4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm)"
brand: "winwill"
price: "$20.00"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/238485943-4pcs-flange-coupling-connector-rigid-guide-model-coupler-accessory-shaft
store_origin: US
region: United States of America
---

# Heat & electroplated for corrosion resistance Precision 3.17mm shaft fit 45# steel for ultimate durability 4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm)

**Brand:** winwill
**Price:** $20.00
**Availability:** ✅ In Stock

## Summary

> ⚙️ Lock in Power, Link with Precision!

## Quick Answers

- **What is this?** 4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm) by winwill
- **How much does it cost?** $20.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/238485943-4pcs-flange-coupling-connector-rigid-guide-model-coupler-accessory-shaft)

## Best For

- winwill enthusiasts

## Why This Product

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

## Key Features

- • **RC Model Essential:** The go-to coupling connector for hobbyists seeking reliable, high-performance motor shaft fittings.
- • **Effortless Installation:** Rigid flange design simplifies assembly and replacement, saving you time on your DIY projects.
- • **Engineered for Endurance:** Crafted from premium 45# steel, outperforming copper and aluminum alloys in strength and longevity.
- • **Precision Fit, Zero Play:** Designed with a 3.17mm shaft diameter for seamless, wobble-free motor connections.
- • **Corrosion-Resistant Finish:** Heat-treated and electroplated surface ensures lasting insulation and protection against wear.

## Overview

This 4-piece flange coupling connector set features 45# steel construction with heat and electroplated treatment, delivering superior durability and corrosion resistance. Designed for 3.17mm shafts, it ensures a precise, stable connection ideal for RC model motors and DIY projects, combining ease of installation with professional-grade performance.

## Description

4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm)

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | winwill |
| Part number | Flange Coupling Connector |
| Item Weight | 40 g |
| Package Dimensions | 8.7 x 7.7 x 1.5 cm; 40 g |
| Manufacturer reference | Flange Coupling Connector |
| Size | 3.17mm |
| Colour | Silver |
| Material | Metal |
| Power source type | Manual |
| Batteries included? | No |
| Batteries Required? | No |
| tech_spec_battery_description_toys | No batteries required |

## Product Details

- **Material:** Metal
- **Fastener type:** Flange
- **Thread size:** M 3
- **Exterior finish:** Aluminum,Copper,Steel
- **Colour:** Silver
- **Metal type:** Aluminium, Copper
- **Drive system:** External Hex
- **Brand:** winwill
- **Size:** 3.17mm

## Images

![4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm) - Image 1](https://m.media-amazon.com/images/I/61OW+F91nxL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nicely made.
*by I***X on 4 January 2025*

I use these from an electric motor to a gear on my model fairground rides.Fit the motor axle nicely and are concentric. Holes for bolting through.

### ⭐⭐⭐⭐⭐ Overpriced
*by B***A on 30 May 2025*

Good product, overpriced a little bit

### ⭐⭐⭐⭐⭐ Very happy with these
*by C***S on 22 February 2025*

... as described and great fit with my Polulu motors

## Frequently Bought Together

- 4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (3.17mm)
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**Shop now:** [https://www.desertcart.us/products/238485943-4pcs-flange-coupling-connector-rigid-guide-model-coupler-accessory-shaft](https://www.desertcart.us/products/238485943-4pcs-flange-coupling-connector-rigid-guide-model-coupler-accessory-shaft)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*