--- 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: "NZ$23" currency: NZD in_stock: true reviews_count: 13 category: "Daier" url: https://www.desertcart.nz/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory store_origin: NZ region: New Zealand --- # 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:** NZ$23 **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?** NZ$23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/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. Review: Perfect Machining and Great Design – Each Flange Was Flawless - 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: These fit small gear drives - Nice product ## 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 | |---------------|-------| | ASIN | B08334N261 | | Best Sellers Rank | #31,738 in Toys & Games ( See Top 100 in Toys & Games ) #222 in Hobby Remote & App Controlled Vehicle Parts | | Brand | daier | | Color | Silver | | Compatible Groove Diameter | 6 Millimeters | | Customer Reviews | 4.5 out of 5 stars 867 Reviews | | Drive Style | External Hex | | Exterior Finish | Aluminum,Steel | | Fastener Type | Flange, Hex | | Finish Types | Polished | | Grade Rating | industrial | | Inside Thread Size | M3 | | Item Diameter | 6 Millimeters | | Item Weight | 0.04 Kilograms | | Manufacturer | daier | | Material | Metal | | Material Type | Metal | | Metal Type | Alloy Steel | | Model | H418*4 | | Number Of Items | 4 | | Number of Pieces | 4 | | Part Number | H418*4 | | Screw Head Style | Flat | | Size Name | 6mm | | Thread Class | Class 2A | | Thread Size | m3 | | Thread Style | Metric | | Thread Type | Iso Metric | ## 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) ![4Pcs 6mm 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/51-odmtpabL.jpg) ![4Pcs 6mm 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/51tdDa-MIXL.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 ### ⭐⭐⭐⭐⭐ Perfect Machining and Great Design – Each Flange Was Flawless *by R***R on February 10, 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. ### ⭐⭐⭐⭐⭐ These fit small gear drives *by S***. on April 22, 2026* Nice product ### ⭐⭐⭐⭐⭐ Work great *by Z***A on May 21, 2026* Worked as advertised ## Frequently Bought Together - 4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors - Greartisan DC 12V 10RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Greartisan DC 12V 1000RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Eccentric Output Shaft 37mm Diameter Gearbox --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory](https://www.desertcart.nz/products/219440125-4pcs-6mm-flange-coupling-connector-rigid-guide-model-coupler-accessory) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-05-30*