--- product_id: 255842282 title: "Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers" brand: "k kwokker" price: "S$78" currency: SGD in_stock: true reviews_count: 5 category: "K Kwokker" url: https://www.desertcart.sg/products/255842282-metric-bolt-assortment-m2-m3-m4-21-sizes-4mm-to store_origin: SG region: Singapore --- # 21 sizes from 4mm to 30mm High-strength 12.9 grade alloy steel Upgraded zinc plating for rust resistance Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers **Brand:** k kwokker **Price:** S$78 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your toolkit with the ultimate bolt arsenal—never get stuck without the right size again! ## Quick Answers - **What is this?** Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers by k kwokker - **How much does it cost?** S$78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/255842282-metric-bolt-assortment-m2-m3-m4-21-sizes-4mm-to) ## Best For - k kwokker enthusiasts ## Why This Product - Trusted k kwokker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Strength:** Crafted from 12.9 grade alloy steel for superior durability and load-bearing performance. - • **Organized & Ready:** 420+ pieces neatly sorted in a compact storage box—grab the exact bolt or nut instantly. - • **Ultimate Size Variety:** 21 precision sizes (M2, M3, M4) cover every project need from micro electronics to household fixes. - • **Versatile Application:** Perfect for precision machinery, electronics, 3D printing, home appliances, and DIY pros. - • **Rust-Proof Reliability:** Dual zinc plating and black oxidized finishes extend lifespan—no extra anti-rust oil needed. ## Overview The K Kwokker Metric Bolt Assortment offers 420+ zinc-plated, 12.9 alloy steel hex socket bolts and nuts in 21 sizes ranging from 4mm to 30mm. Designed for durability and rust resistance, this organized kit is ideal for professionals and DIY enthusiasts tackling electronics, machinery, and household projects. ## Description Buy K Kwokker Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. Review: Great Bolt Assortment to Have Around - This Kwokker metric bolt assortment is a great set to keep on hand. The M2, M3, and M4 sizes give you a lot of options, and the range from 4mm to 30mm makes it useful for small repairs, projects, electronics, and 3D printing work. Everything is organized well, and it’s convenient having so many sizes in one kit. Great value and very handy. Review: Tops - Top notch fast delivery good quality ## Features - Larger Quantity: Various M2 M3 M4 Screws with Nuts and Flat Washers Meet All Demands: Nice set screw assortment kit. M2 Bolts: 4mm 6mm 8mm 12mm 16mm 20mm 25mm; M3 Bolt: 4mm 8mm 12mm 16mm 18mm 20mm 30mm; M4 Bolt: 6mm 8mm 10mm 14mm 18mm 20mm 30mm - 21 Sizes More Choices, 4MM to 30MM, Custom 7 Length for 1 Model: Different size of K Kwokker M2 M3 M4 screws and nuts. Others: Long length is just 16mm/20mm/25mm. K Kwokker has a larger quantity of bolts in 420 pcs, while others only have 200+/ 300+ bolts - More Clean and Tidy, Upgraded Zinc Plated Screw Set, Practical Gifts for Family, Friends: K Kwokker Upgraded Zinc Electroplated and Black Oxidized Version, 2 production process, extended rust prevention time, no need to add anti-rust oil, cleaner, tidier - More Than 20 Years Experience in Fastener Industry. High Quality 12.9 Grade Alloy Steel: Standardized metric screws assortment, durable nuts and bolts. Screw is packed separately in a bag. Storage: Assorted screws all are stored in one storage bin box - Wide Usage, K Kwokker Nut And Bolt Assortment Can Be Widely Used: in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07K1DV93T | | Best Sellers Rank | #66,548 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #276 in Hardware Nuts & Bolts | | Brand | K Kwokker | | Color | A Black Hex Socket Set | | Colour | A Black Hex Socket Set | | Customer Reviews | 4.6 out of 5 stars 825 Reviews | | Fastener Type | Socket Head | | Fastener type | Socket Head | | Finish Types | Zinc | | Grade Rating | residential | | Head style | Hex | | Item Diameter | 4 Millimeters | | Item Shape | Hexagonal | | Manufacturer | K Kwokker | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model | TLEEP-24 | | Number Of Items | 1260 | | Number of Packs | 1 | | Number of Pieces | 1710 | | Part Number | TLEEP-24 | | Screw Head Style | Hex | | Set Name | Metric Bolt Assortment M2 M3 M4 | | Size | M2 M3 M4 | | Size Name | M2 M3 M4 | | Thread Size | M2 M3 M4 | | UPC | 705526213117 | | Unit Count | 1 Count | ## Product Details - **Brand:** K Kwokker - **Colour:** A Black Hex Socket Set - **Fastener type:** Socket Head - **Material:** Alloy Steel - **Size:** M2 M3 M4 ## Images ![Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - Image 1](https://m.media-amazon.com/images/I/81-nit7qlML.jpg) ![Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - Image 2](https://m.media-amazon.com/images/I/81HPBgRbyML.jpg) ![Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - Image 3](https://m.media-amazon.com/images/I/719PpCGQcpL.jpg) ![Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - Image 4](https://m.media-amazon.com/images/I/71jfpUUyNLL.jpg) ![Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - Image 5](https://m.media-amazon.com/images/I/71N5vPT4f3L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can you sell the various screws separately? As in, if I wanted to, could I order 30 or 60 m2 x 10, washers, and nuts?** A: You can, but not in this kit. **Q: Are these couse thread?** A: No **Q: What is the thread pitch of these screws?** A: Hi friend, thread pitch: M2: 4mm; M3: 5mm; M4: 7mm; M5: 8mm. **Q: What pitch are the threads? .7mm???** A: Yes, it's a common one ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Bolt Assortment to Have Around *by T***T on 10 May 2026* This Kwokker metric bolt assortment is a great set to keep on hand. The M2, M3, and M4 sizes give you a lot of options, and the range from 4mm to 30mm makes it useful for small repairs, projects, electronics, and 3D printing work. Everything is organized well, and it’s convenient having so many sizes in one kit. Great value and very handy. ### ⭐⭐⭐⭐⭐ Tops *by J***. on 8 June 2026* Top notch fast delivery good quality ### ⭐⭐⭐⭐⭐ Good selection of sizes. *by M***Y on 6 October 2025* I bought these to use with a set of metric screw inserts. They match up very well. I also used them in several other projects where I had to use a nut and that also worked well. I like the selection of sizes and the quantity is sufficient. I especially like that washers and nuts are included so that I do not have to purchase them separately. ## Frequently Bought Together - K Kwokker 1710Pcs Metric Bolt Assortment M2 M3 M4, 21 Sizes 4MM to 30MM Upgraded Zinc Plated Hex Socket Head Cap Machine Screws, 12.9 Alloy Steel Bolts and Nuts Kit Screws Nuts and Washers - ETopLike 1000PCS M1 M1.2 M1.4 M1.6 Stainless Steel Screw & Nut Set Assortment Kit Repair Tool with Mini 3 in 1 Screwdriver Keychain for Glasses/Cellphone/Watches - Alextend 58pcs Plastic Gears Module 0.5 for DC Motor DIY Model Toys --- ## 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.sg/products/255842282-metric-bolt-assortment-m2-m3-m4-21-sizes-4mm-to](https://www.desertcart.sg/products/255842282-metric-bolt-assortment-m2-m3-m4-21-sizes-4mm-to) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-23*