--- product_id: 221848773 title: "4 Pcs 4mm to 4mm Universal Joint Shaft Coupling for Motor | with Screws" brand: "befenybay" price: "AR$44854" currency: ARS in_stock: true reviews_count: 11 category: "Befenybay" url: https://www.desertcart.com.ar/products/221848773-4-pcs-4mm-to-4mm-universal-joint-shaft-coupling-motor store_origin: AR region: Argentina --- # 4mm to 4mm precision fit Includes M3 screws & hex wrench 45# steel electroplated strength 4 Pcs 4mm to 4mm Universal Joint Shaft Coupling for Motor | with Screws **Brand:** befenybay **Price:** AR$44854 **Availability:** ✅ In Stock ## Summary > ⚙️ Connect with Confidence — Power Your Projects Like a Pro! ## Quick Answers - **What is this?** 4 Pcs 4mm to 4mm Universal Joint Shaft Coupling for Motor | with Screws by befenybay - **How much does it cost?** AR$44854 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/221848773-4-pcs-4mm-to-4mm-universal-joint-shaft-coupling-motor) ## Best For - befenybay enthusiasts ## Why This Product - Trusted befenybay brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Lightweight:** Measuring just 23x9mm and weighing 7g, it fits tight spaces without adding bulk. - • **Precision Engineering:** Exact 4mm to 4mm shaft coupling ensures seamless motor and shaft connectivity without play. - • **Universal Compatibility:** Built to International Flange Standards, perfect for a wide range of motor and shaft applications. - • **Complete Installation Kit:** Includes 4 couplings, 8 fastening screws, and an M3 hex wrench for hassle-free setup. - • **Industrial-Grade Durability:** Crafted from premium 45# steel with electroplating for superior wear resistance and longevity. ## Overview This 4-piece universal joint shaft coupling set features robust 45# electroplated steel construction, precision 4mm to 4mm shaft fit, and comes complete with screws and a hex wrench. Designed to meet International Flange Standards, it offers reliable, wear-resistant motor shaft connections ideal for professional and DIY applications. ## Description Specification: Color: Silver Material: 45# steel Thread Size: M3 Net Weight: 7g Connection Diameter:4mm to 4mm/0.16 inch to 0.16 inch Total Size: 23 x 9mm / 0.91 inch x 0.35 inch (L*D) Package List: 4pcs universal joint shaft coupler 1pcs M3 Hex Wrench 8pcs screws Review: Great quality. - Well made and seem to be solid enough for the task. These have c clips holding the cross pins. Others don't. They are quite weak. Working well so far. Review: Perfect fit. Strong - Worked perfectly for my project ## Features - 【 Material】 Universal joint shaft coupling is made of 45# steel, and then electroplated，much stronger, wearproof - 【Widely Used】Universal joint shaft coupling is produced based on International Flange Standard, widely used for shaft connection - 【Dimensions】Inner Diameter: 4mm to 4mm. Outer Diameter: 9mm. Height: 23mm - 【Package Include】4pcs 4mm to 4mm universal joint shaft coupling, 1pcs M3 hex wrench, 8pcs fastening screws - 【Function】 Can be used for motor etc ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 238 Reviews | ## Images ![4 Pcs 4mm to 4mm Universal Joint Shaft Coupling for Motor | with Screws - Image 1](https://m.media-amazon.com/images/I/71vvX7Mb2cL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great quality. *by M***R on September 25, 2024* Well made and seem to be solid enough for the task. These have c clips holding the cross pins. Others don't. They are quite weak. Working well so far. ### ⭐⭐⭐⭐⭐ Perfect fit. Strong *by D***P on January 18, 2025* Worked perfectly for my project ### ⭐⭐⭐⭐⭐ Good joints. *by D***. on January 21, 2021* They seem sturdy enough. They're not solid stainless steel but they're not a cheap metal. The things I like most about these is they're precise at 8mm with no wiggle or friction. The boar is 8mm straight to the joint, so if you needed to restrict motion you can push your rod or shaft up flush to the joint bar. Also another nice thing is the joint on these aren't some metal dowel smashed in but rather a pin with snaprings keeping in place so if you so needed you could take it apart and use as a y joint. I personally used these for a motorized actuator and this is the joint that goes on the back of the push rod and front of the rotating arm and it keeps the rods in place well without any wiggle or getting loose, just be sure to file or drill a couple of dimples for the set screws on your rod and it'll hold it tight and no rotating or jiggle. --- ## 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.com.ar/products/221848773-4-pcs-4mm-to-4mm-universal-joint-shaft-coupling-motor](https://www.desertcart.com.ar/products/221848773-4-pcs-4mm-to-4mm-universal-joint-shaft-coupling-motor) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-08-05*