--- product_id: 329173358 title: "uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black" brand: "uxcell" price: "COP 72544" currency: COP in_stock: true reviews_count: 5 category: "Uxcell" url: https://www.desertcart.co/products/329173358-uxcell-2pcs-m5x20mm-10-9-grade-hex-socket-reverse-left store_origin: CO region: Colombia --- # M5 x 20mm precision size Black oxide corrosion resistance Grade 10.9 high strength steel uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black **Brand:** uxcell **Price:** COP 72544 **Availability:** ✅ In Stock ## Summary > 🛠️ Lock in strength, unlock precision with every twist! ## Quick Answers - **What is this?** uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black by uxcell - **How much does it cost?** COP 72544 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/329173358-uxcell-2pcs-m5x20mm-10-9-grade-hex-socket-reverse-left) ## 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 - • **Premium Alloy Steel:** Crafted from 40Cr steel with Grade 10.9 hardness for unmatched durability and strength under pressure. - • **Hex Socket Button Head:** Ergonomic hex socket design ensures easy, slip-free tightening with precision tools. - • **Reverse Thread Mastery:** Left-hand threading for specialized, secure fastening that stands out in any industrial setup. - • **Sleek Black Oxide Finish:** Corrosion-resistant coating that not only protects but adds a professional matte black aesthetic. - • **Versatile Industrial Use:** Perfect for machinery, communication equipment, ship assembly, and more—engineered for professionals who demand reliability. ## Overview The uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolts are engineered from premium 40Cr alloy steel with a Grade 10.9 hardness rating, ensuring exceptional strength and durability. Featuring a fully threaded M5 x 0.8 left-hand design and a corrosion-resistant black oxide finish, these bolts provide secure fastening solutions for industrial, mechanical, and specialized applications. Their hex socket button head allows for precise, slip-resistant installation, making them a must-have for professionals seeking reliable, high-performance fasteners. ## Description Made of 40Cr Steel material,black oxide finish,hex socket head,left hand reverse thread design.Fixing component, industrial and construction fasteners.To tighten a reverse threaded screw, you turn it counter clockwise.To loosen a reverse threaded screw, you turn it clockwise.Used widely in home, office and factory appliance, communication equipments, ship assembly and other machinery industry. Review: These reverse screw threads are ideal as chuck screws when others ware out. These are stronger material. Review: Nicht so einfach M5 Linksgewinde passend zu finden. Hier war alles gut. ## Features - Product Name: Left Hand Thread Bolt; Package Content: 2pcs x Left Hand Thread Bolt; Main Color: Black; Material: 40Cr Steel - Weight: 8g; Drive Type: Hex Socket Head; Head Style: Button Head - Thread Size: M5; Total Length: 22mm / 0.87"; Thread Style: Fully Thread - Head Size: 9.2mm / 0.36" (D); Hex Socket Width: 3mm / 0.12"; Grade: 10.9 - Pitch: 0.8mm; Coating: Black Oxide Plated; Thread Length: 20mm / 0.79" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074T4GFXK | | Batteries Included? | No | | Batteries Required? | No | | Brand | uxcell | | Color | black | | Customer Reviews | 4.6 4.6 out of 5 stars (69) | | Date First Available | August 15, 2017 | | Exterior Finish | Black Oxide | | Fastener Type | Hexagon Bolt | | Head Style | Button | | Head Type | Button | | Item Hardness | Grade 10.9 | | Item Weight | 0.317 ounces | | Item model number | a17070800ux0278 | | Manufacturer | uxcell | | Manufacturer Grade | Grade 10 9 | | Material | Alloy Steel | | Measurement System | Metric | | Metal Type | Alloy Steel | | Number of Pieces | 2 | | Package Dimensions | 5.79 x 3.98 x 0.2 inches | | Part Number | a17070800ux0278 | | Thread Size | M5 x 0.8 | | Thread Style | Left Hand | | Thread Type | Fully Thread | | UPC | 605322680000 | ## Product Details - **Exterior Finish:** Black Oxide - **Head Style:** Button - **Manufacturer Grade:** Grade 10 9 - **Material:** Alloy Steel - **Thread Size:** M5 x 0.8 ## Images ![uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black - Image 1](https://m.media-amazon.com/images/I/31iOPUUmKjL.jpg) ![uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black - Image 2](https://m.media-amazon.com/images/I/31sQ7zqmngL.jpg) ![uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black - Image 3](https://m.media-amazon.com/images/I/51Jr+5nCU8L.jpg) ![uxcell® 2pcs M5x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black - Image 4](https://m.media-amazon.com/images/I/51TJCQHYb4L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***M on January 18, 2018* These reverse screw threads are ideal as chuck screws when others ware out. These are stronger material. ### ⭐⭐⭐⭐⭐ Review *by A***H on October 13, 2025* Nicht so einfach M5 Linksgewinde passend zu finden. Hier war alles gut. ### ⭐⭐⭐⭐⭐ Review *by L***E on September 21, 2025* Parfait pour le contre serrage de mandrin de ma visseuse Tete de vis de petit diamètre (~10mm) Semble de bonne qualité Possibilité de serrer sans retenue --- ## 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.co/products/329173358-uxcell-2pcs-m5x20mm-10-9-grade-hex-socket-reverse-left](https://www.desertcart.co/products/329173358-uxcell-2pcs-m5x20mm-10-9-grade-hex-socket-reverse-left) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-06-06*