--- product_id: 173223789 title: "uxcell 8mm to 10mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories,Blue,2pcs" brand: "uxcell" price: "KD 3.54" currency: KWD in_stock: true reviews_count: 13 category: "Uxcell" url: https://www.desertcart.com.kw/products/173223789-uxcell-8mm-to-10mm-bore-rigid-coupling-set-screw-l25xd16 store_origin: KW region: Kuwait --- # 25mm total length 8-10mm precision bore Aluminum alloy rigidity uxcell 8mm to 10mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories,Blue,2pcs **Brand:** uxcell **Price:** KD 3.54 **Availability:** ✅ In Stock ## Summary > ⚙️ Lock in precision, power your projects with style! ## Quick Answers - **What is this?** uxcell 8mm to 10mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories,Blue,2pcs by uxcell - **How much does it cost?** KD 3.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/173223789-uxcell-8mm-to-10mm-bore-rigid-coupling-set-screw-l25xd16) ## Best For - uxcell enthusiasts ## Why This Product - Trusted uxcell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Single-piece set screw clamp design with 8 screws for secure, maintenance-free shaft holding. - • **Compact & Durable Design:** At just 25mm length and 16mm diameter, it fits seamlessly into tight mechanical assemblies. - • **Precision Fit, Zero Play:** 8mm to 10mm bore ensures a tight, wobble-free connection for high-performance shafts. - • **Versatile Industrial Use:** Perfect for 3D printers, CNC machines, stepper motors, and DIY robotics—join the maker elite. - • **Lightweight Aluminum Alloy:** Reduces inertia while delivering high torque and corrosion resistance for long-lasting reliability. ## Overview The uxcell 8mm to 10mm Bore Rigid Coupling Set Screw is a high-torque, low-inertia aluminum alloy shaft connector designed for precision mechanical assemblies. Measuring 25mm in length and 16mm in diameter, it features a robust set screw clamp system with 8 screws for secure, maintenance-free operation. Ideal for 3D printers, CNC machines, and robotics, this blue anodized coupling ensures zero rotation gap and excellent sensitivity, making it a must-have for professionals demanding reliability and performance. ## Description Specification:8 pcs screws designThread Size: M4Color: BlueMaterial: Aluminum AlloyConnection Diameter: 8mm to 10mmTotal Length: 25mm /0.98 inchOutside Diameter : 16mm/ 0.63 inchThrough Angle: 180 Degree Package List:2 Pcs x Rigid Shaft Coupler8 Pcs x M4 ScrewsDescription:Made from aluminum alloy material to reduce inertiaRigid coupling,high torque with rigidity,low inertia and excellent sensitivityNo rotation gap, elastic action can make up for symmetrical angular misalignmentMaintenance-free, oil proof and corrosion resistanceSuitable for model car, model boat, hardware, , mechanical drive situations etc Note:Please allow 1-3mm differs due to manual measurementDue to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding Review: uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy - Excellent Product, Excellent Quality, Excellent value for the money. Review: Works great would recommend 100% ## Features - Connection Diameter: 8mm to 10mm, Total Length: 25mm /0.98 inch, Outside Diameter : 16mm/ 0.63 inch - Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies. - Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity. - NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use. - Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07P5Z2G9Z | | Batteries Required? | No | | Best Sellers Rank | #13,775 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Rigid Set Screw Couplings | | Brand | uxcell | | Color | Blue | | Customer Reviews | 4.5 4.5 out of 5 stars (665) | | Cutting Diameter | 8 Millimeters | | Date First Available | February 28, 2019 | | Exterior Finish | Aluminum | | Fastener Type | Coupling | | Finish | blue | | Finish Type | blue | | Head Style | Flat | | Inside Thread Size | M4 | | Item Diameter | 8 Millimeters | | Item Weight | 0.634 ounces | | Manufacturer | uxcell | | Material | Aluminum | | Measurement System | Inch, Metric | | Metal Type | Aluminum | | Number of Pieces | 2 | | Part Number | a18121800ux0689 | | Shape | Cylindrical | | Size | 8mm to 10mm | | Thread Class | Class 2A | | Thread Size | m4 | | Thread Style | Right Hand, Metric | | Thread Type | Iso Metric | ## Product Details - **Color:** Blue - **Exterior Finish:** Aluminum - **Fastener Type:** Coupling - **Material:** Aluminum - **Thread Size:** m4 ## Images ![uxcell 8mm to 10mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories,Blue,2pcs - Image 1](https://m.media-amazon.com/images/I/61+Ha-8ZcaL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy *by F***D on November 19, 2025* Excellent Product, Excellent Quality, Excellent value for the money. ### ⭐⭐⭐⭐⭐ Works great would recommend 100% *by S***A on January 5, 2026* ### ⭐⭐⭐⭐⭐ Almost Perfect!! *by I***S on April 1, 2024* Yep, I said "Almost". But it's my shortcomings not the product's shortcomings that make me say "almost". The set screws are really small and hard to see or insert. You have to put them in the right way or you cannot use an allen wrench to tighten them. In my younger days, before cataracts, I wouldn't have had any problem seeing these set screws. But today, it was difficult getting them screwed in and tightened. I would have liked the set screws to be locked into the holes so I only had to tighten them and couldn't take them out or lose them. I am building a linear stage which uses a 5/16" threaded rod and a 12VDC motor with a 4mm shaft. I needed to connect them together. I talked with employees at the big box hardware stores and department stores -- they had no idea what to use to make the connection. It wasn't until I realized that the motor manufacturer would probably have good ideas for how to make the connection that I found these connectors. --- ## 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.kw/products/173223789-uxcell-8mm-to-10mm-bore-rigid-coupling-set-screw-l25xd16](https://www.desertcart.com.kw/products/173223789-uxcell-8mm-to-10mm-bore-rigid-coupling-set-screw-l25xd16) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-21*