--- 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: "S/.182" currency: PEN in_stock: true reviews_count: 5 category: "Daier" url: https://www.desertcart.pe/products/402644913-4pcs-4mm-flange-coupling-connector-rigid-guide-model-coupler-accessory store_origin: PE region: Peru --- # 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:** S/.182 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate Your RC Builds with Precision Power! ## 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?** S/.182 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/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 - • **Industrial-Grade Durability:** Crafted from premium 45# steel with heat and electroplated finish for unmatched sturdiness and insulation. - • **Top-Rated Quality Assurance:** Backed by 4.6-star reviews and praised for flawless machining and fast shipping—join thousands of satisfied modelers. - • **Precision Fit for 4mm Shafts:** Engineered with exact 4mm inner diameter and M3 screw holes ensuring flawless shaft alignment and stability. - • **All-Inclusive Installation Kit:** Includes 4 flange couplings, 8 M3 fastening screws, and a mini hex wrench for effortless assembly and maintenance. - • **Versatile RC Model Compatibility:** Perfectly suited for RC airplanes, boats, and DIY motor projects, elevating your build’s performance and reliability. ## Overview This 4-piece flange coupling set is crafted from industrial-grade 45# alloy steel, designed for 4mm shafts with M3 fastening screws. Engineered for RC model motors and DIY projects, it offers superior durability, precise fit, and comes with all necessary hardware for quick installation. Highly rated for quality and reliability, it’s the essential upgrade for serious hobbyists. ## 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 Review: Good quality, fast shipping. ## 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 | #44,272 in Toys & Games ( See Top 100 in Toys & Games ) #458 in Model Building Kits | | Brand | daier | | Colour | Silver | | Compatible Groove Diameter | 4 Millimeters | | Customer Reviews | 4.6 out of 5 stars 828 Reviews | | Drive Style | Hex | | Exterior Finish | Aluminum , Steel | | Fastener Type | Coupling , Hex | | Finish Types | Unfinished | | Grade Rating | Industrial | | Inside Thread Size | M3 | | Item Diameter | 4 Millimetres | | Item Dimensions | 50 x 15 x 40 Millimeters | | Item Weight | 30 Grams | | Manufacturer | daier | | Material | Metal | | Material Type | Metal | | Maximum Shear Strength | [INFERRED: Higher than aluminum or copper alloys] | | Metal Type | Alloy Steel | | Model | H416*4 | | Number of Pieces | 4 | | Part Number | H416*4 | | Screw Head Style | Flat | | Size Name | 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/61PprJJW0AL.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/61TNTUjsl0L.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/61GCOE0xZ8L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect Machining and Great Design – Each Flange Was Flawless *by R***R on 10 February 2026* ### ⭐⭐⭐⭐⭐ Good quality, fast shipping. *by R***L on 2 September 2023* ### ⭐⭐⭐⭐⭐ Exactly as expected. *by A***H on 17 April 2024* ## 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) --- ## 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.pe/products/402644913-4pcs-4mm-flange-coupling-connector-rigid-guide-model-coupler-accessory](https://www.desertcart.pe/products/402644913-4pcs-4mm-flange-coupling-connector-rigid-guide-model-coupler-accessory) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-05-06*