--- product_id: 272370294 title: "720pcs M2 M2.5 M3 M4 M5 M6 Internal Hex Drive Cup-Point Set Screws,Socket Head Cap Screws Grub Screws Assortment Kit 15 Sizes,Carbon Steel Black" brand: "lby" price: "HK$319" currency: HKD in_stock: true reviews_count: 5 category: "Lby" url: https://www.desertcart.hk/products/272370294-720pcs-m2-m2-5-m3-m4-m5-m6-internal-hex store_origin: HK region: Hong Kong --- # 720pcs total variety 15 precise metric sizes Carbon steel blackened anti-rust 720pcs M2 M2.5 M3 M4 M5 M6 Internal Hex Drive Cup-Point Set Screws,Socket Head Cap Screws Grub Screws Assortment Kit 15 Sizes,Carbon Steel Black **Brand:** lby **Price:** HK$319 **Availability:** βœ… In Stock ## Summary > πŸ”§ Screw it right, every time β€” the pro’s secret stash! ## Quick Answers - **What is this?** 720pcs M2 M2.5 M3 M4 M5 M6 Internal Hex Drive Cup-Point Set Screws,Socket Head Cap Screws Grub Screws Assortment Kit 15 Sizes,Carbon Steel Black by lby - **How much does it cost?** HK$319 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/272370294-720pcs-m2-m2-5-m3-m4-m5-m6-internal-hex) ## Best For - lby enthusiasts ## Why This Product - Trusted lby brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Ready-to-Use Kit:** Includes Allen keys for instant installation convenience - β€’ **Massive Bulk Pack:** 720 screws ensure you never run out mid-job - β€’ **Durable Carbon Steel:** Blackened finish for superior corrosion and rust resistance - β€’ **Versatile Application:** Perfect for machinery, electronics, home repairs & DIY hobbies - β€’ **Ultimate Size Spectrum:** 15 metric sizes from M2 to M6 cover every project need ## Overview The LBY 720pcs Internal Hex Drive Cup-Point Set Screws Kit offers an extensive assortment of 15 metric sizes (M2 to M6) crafted from durable carbon steel with a blackened anti-corrosion finish. Designed for professionals and hobbyists alike, this bulk set provides reliable, versatile fastening solutions for machinery, electronics, home furniture, and more, all neatly packaged with Allen keys for immediate use. ## Description LBY Hex Allen Head Socket Set Screw Bolts Assortment Kit Grub Screw with Internal Hex Drive ● Product: - hex socket head cap screws : - M2 x 4/ 6/8mm - M2.5 x 4/ 6/8mm - M3 x 4/ 6/8mm - M4 x 8/ 12mm - M5 x 8/12mm - M6 x 8/12mm - Material: carbon steel- Main Color:black - Surface treatment: carbon steel blackening ● Package: - M2 x 4mm ----- 80pcs - M2 x 6mm ----- 80pcs - M2 x 8mm ----- 80pcs - M2.5 x 4mm -- 80pcs - M2.5 x 6mm -- 80pcs - M2.5 x 8mm -- 80pcs - M3 x 4mm ----- 40pcs - M3 x 6mm ----- 40pcs - M3 x 8mm ----- 40pcs - M4 x 8mm ----- 20pcs - M4 x 12mm---- 20pcs - M5 x 8mm ----- 20pcs - M5 x 12mm---- 20pcs - M6 x 8mm ----- 20pcs - M6 x 12mm---- 20pcs ● Description: - Allen head socket hex grub screw set,made of carbon steel, surface adoption blackening treatment,with excellent anti-rust and corrosion resistance property. - A variety of specifications for easy selection. - This is a socket head cap screws grub screws, including 15 sizes,in total 720pcs. - Widely used in machine tool equipment, chemical equipment, water pumps, ships, electrical equipment ,toys, electronics, faucet, light fixture, knobs, armament repair, plumber and other small repairs around the shop, garage or home. Review: I occasionally need a metric socket screw, and some sizes can be difficult to find at most hardware stores. The overall quality was good, and the machining of the threads was quite acceptable. It is nice to have a good variety sitting on my workbench for the next time that I need on of these oddball screws. Review: So I build Neopixel lightsabers as a hobby. Now purchasing grub screws through saber merchants can be expensive (up to $2 per screw). I just needed one for chassis retention so I bought this. Some of them have rough threads but screw them in once and it's resolved. Cheap, solved my issue, and now I have enough for my hobby for the foreseeable future. Came in a nice little box with Allen keys so I also got all I needed from that perspective as well. Overall nothing negative to say about them and worked perfect for my application. Maybe if you need them for something more dependable or tight tolerances go elsewhere but for my needs, they were excellent. ## Features - 1.Carbon steel internal hex drive cup-point set screws assortment kit 15 sizes. - 2.Material: carbon steel;color: black. - 3.Size : M2 x 4/ 6/8mm,M2.5 x 4/ 6/8mm,M3 x 4/ 6/8mm,M4 x 8/ 12mm,M5 x 8/12mm,M6 x 8/12mm. - 4.Contains: 15 sizes,in total 720pcs. - 5.Use: widely used in machine tool equipment, chemical equipment, water pumps, ships, electrical equipment ,toys, electronics, small appliances, home furniture etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GNK9M18 | | Best Sellers Rank | #141,716 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #102 in Set Screws | | Finish type | Blackened | | Head style | Socket | | Item diameter | 6 Millimeters | | Item model number | LBY-056-8 | | Manufacturer | LBY | | Number of pieces | 720 | | Shape | Round | | Thread size | M6 | | UPC | 663274757485 | ## Product Details - **Brand:** LBY - **Colour:** Black - **Fastener type:** Socket Head - **Material:** Carbon Steel - **Size:** M2 M2.5 M3 M4 M5 M6 ## Images ![720pcs M2 M2.5 M3 M4 M5 M6 Internal Hex Drive Cup-Point Set Screws,Socket Head Cap Screws Grub Screws Assortment Kit 15 Sizes,Carbon Steel Black - Image 1](https://m.media-amazon.com/images/I/81wUT9EBGzL.jpg) ## Questions & Answers **Q: Does anyone know if this comes with allen keys? Or just the bolts/screws?** A: Hello, buyer. All we can tell you is that the product may be equipped with an Allen key. Because for promotional reasons, the product sometimes comes with a wrench, but please note that this is not a requirement. Hope it can help you. I wish you a happy life. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***Y on 30 November 2025* I occasionally need a metric socket screw, and some sizes can be difficult to find at most hardware stores. The overall quality was good, and the machining of the threads was quite acceptable. It is nice to have a good variety sitting on my workbench for the next time that I need on of these oddball screws. ### ⭐⭐⭐⭐⭐ Review *by K***S on 1 November 2022* So I build Neopixel lightsabers as a hobby. Now purchasing grub screws through saber merchants can be expensive (up to $2 per screw). I just needed one for chassis retention so I bought this. Some of them have rough threads but screw them in once and it's resolved. Cheap, solved my issue, and now I have enough for my hobby for the foreseeable future. Came in a nice little box with Allen keys so I also got all I needed from that perspective as well. Overall nothing negative to say about them and worked perfect for my application. Maybe if you need them for something more dependable or tight tolerances go elsewhere but for my needs, they were excellent. ### ⭐⭐⭐⭐⭐ Review *by B***R on 16 January 2025* good product good price works as it should ## Frequently Bought Together - LBY 720pcs M2 M2.5 M3 M4 M5 M6 Hex Socket Drive Cup-Point Set Screws Assortment Kit, Socket Head Cap Screws, Grub Screws, 12 Sizes, Carbon Steel (Black) - mxuteuk M2 Screws Assortment,M2 x 4/6/8/10/12/16/20mm Hex Socket Head Cap Screws Bolts Nuts Kit, 520PCS 12.9 Grade Alloy Steel Assorted Screws Small Metric Screws Suitable for 3D Printer DIY --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/272370294-720pcs-m2-m2-5-m3-m4-m5-m6-internal-hex](https://www.desertcart.hk/products/272370294-720pcs-m2-m2-5-m3-m4-m5-m6-internal-hex) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-16*