--- product_id: 670658517 title: "1274 Pcs 12.9 Carbon Steel Bolts and Nuts Set, Hex Nut and Bolt, Hex Socket Head Cap Screw bolts and nuts and Washers set, Black Metric Machine screws and Nuts Assortment Kit M2 M3 M4 M5" brand: "youyidun" price: "$82.99" currency: USD in_stock: true reviews_count: 13 category: "Youyidun" url: https://www.desertcart.us/products/670658517-1274-pcs-12-9-carbon-steel-bolts-and-nuts-set store_origin: US region: United States of America --- # 1274 pcs total for every project 12.9-grade carbon steel for max strength Hex socket head for high torque grip 1274 Pcs 12.9 Carbon Steel Bolts and Nuts Set, Hex Nut and Bolt, Hex Socket Head Cap Screw bolts and nuts and Washers set, Black Metric Machine screws and Nuts Assortment Kit M2 M3 M4 M5 **Brand:** youyidun **Price:** $82.99 **Availability:** ✅ In Stock ## Summary > 🔧 Lock in strength, unlock your DIY potential! ## Quick Answers - **What is this?** 1274 Pcs 12.9 Carbon Steel Bolts and Nuts Set, Hex Nut and Bolt, Hex Socket Head Cap Screw bolts and nuts and Washers set, Black Metric Machine screws and Nuts Assortment Kit M2 M3 M4 M5 by youyidun - **How much does it cost?** $82.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/670658517-1274-pcs-12-9-carbon-steel-bolts-and-nuts-set) ## Best For - youyidun enthusiasts ## Why This Product - Trusted youyidun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Size Range:** Includes M2, M3, M4, M5 bolts, nuts, and washers to cover all your fastening needs. - • **Precision Engineering:** Smooth, clear threads ensure effortless installation and removal with minimal wear. - • **High Torque Performance:** Hex socket head design delivers superior grip and balanced force without slipping. - • **Organized & Ready to Use:** Compact, clearly labeled case with 4 hex wrenches keeps your toolkit sharp and efficient. - • **Unmatched Strength & Durability:** Premium 12.9-grade carbon steel resists rust, wear, and deformation for long-lasting reliability. ## Overview This 1274-piece set features high-grade 12.9 carbon steel hex socket bolts, nuts, and washers in M2 to M5 sizes, engineered for superior torque, corrosion resistance, and durability. Perfectly suited for professional repairs, DIY projects, and mechanical assemblies, it comes in a compact, organized case with hex wrenches for quick, precise fastening. ## Description 1274 Pcs 12.9 Carbon Steel Bolts and Nuts Set, Hex Nut and Bolt, Hex Socket Head Cap Screw bolts and nuts and Washers set, Black Metric Machine screws and Nuts Assortment Kit M2 M3 M4 M5 : desertcart.co.uk: DIY & Tools Review: Handy Bolt Set with Minor Packaging Issue - I buy a lot of these assorted nut and bolt sets, and this M4 405-piece kit is pretty good overall. The bolts, nuts, and washers are well machined and consistent, which is exactly what you want for general workshop use or hobby projects. The included case is compact and clearly labelled, which makes it easy to find what you need quickly. The only slight issue was that a few of the plastic dividers had come loose during shipping, so some of the compartments had mixed contents when it arrived. It was easy enough to sort out, but worth knowing in case you are expecting it to be ready to use straight out of the box. Still, for the price and the quantity, it is a solid purchase and a useful addition to any toolkit. Review: Good nuts and bolts - Excellent all as advertised they are very useful ## Features - 【 12.9-grade Carbon Steel, Strong and Durable】Nuts and bolts set is made of high-quality 12.9-grade carbon steel, with high hardness, high torque, strong stability, not easy to break or deform, corrosion-resistant, not easy to rust, and can maintain high performance in any environment, with long-lasting durability - 【Hex Socket Head Cap Screws Bolts and Nuts and Washers Set】The hex socket screws have a high cylindrical head and a recessed hexagonal drive area, which has high holding force at high torque levels, is not easy to deform or slip, and has a more balanced force - 【Easy to Install and Use】Bolts have smooth, accurate, clear threads, strong performance, and are easier to thread and disengage. The installation and removal work can be easily completed using the matching hexagonal wrench. Use nuts and washers to increase the contact area, reduce wear, and make your installation more accurate - 【Wide Application】Nut and bolt sets are widely used in home and office appliances, fastening mechanical parts, communication equipment, automobile and motorcycle repair, ship assembly, electronic equipment, electrical boxes, furniture, DIY inventions, or other fields. - 【Package Includes】 Our hex socket screws set includes M2, M3, M4, M5 size bolts with matching nuts and washers, a total of about 1270 pieces and 4 pieces hex spanner, meet different needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DCVDPGBS | | Best Sellers Rank | 7,230 in DIY & Tools ( See Top 100 in DIY & Tools ) 20 in Nut & Bolt Sets | | Brand Name | YOUYIDUN | | Colour | Brown | | Compatible Groove Diameter | 3 Millimeters | | Country Of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (969) | | Fastener Type | Socket Head | | Finish Types | Zinc | | Item Diameter | 2 Millimetres | | Item Dimensions | 20 x 15 x 3.7 centimetres | | Item Shape | Hexagonal | | Item Weight | 887 Grams | | Manufacturer | YOUYIDUN | | Material Type | Carbon Steel | | Number of Pieces | 1274 | | Screw Head Style | Hex | | Size | M2/M3/M4/M5-1270 | | Thread Size | M2-M5 | | Unit Count | 887.0 Grams | ## Product Details - **Brand:** YOUYIDUN - **Colour:** Brown - **Item dimensions L x W x H:** 20 x 15 x 3.7 centimetres - **Material:** Carbon Steel - **Size:** M2/M3/M4/M5-1270 ## Images ![1274 Pcs 12.9 Carbon Steel Bolts and Nuts Set, Hex Nut and Bolt, Hex Socket Head Cap Screw bolts and nuts and Washers set, Black Metric Machine screws and Nuts Assortment Kit M2 M3 M4 M5 - Image 1](https://m.media-amazon.com/images/I/816XFgsuALL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Handy Bolt Set with Minor Packaging Issue *by T***N on 13 August 2025* I buy a lot of these assorted nut and bolt sets, and this M4 405-piece kit is pretty good overall. The bolts, nuts, and washers are well machined and consistent, which is exactly what you want for general workshop use or hobby projects. The included case is compact and clearly labelled, which makes it easy to find what you need quickly. The only slight issue was that a few of the plastic dividers had come loose during shipping, so some of the compartments had mixed contents when it arrived. It was easy enough to sort out, but worth knowing in case you are expecting it to be ready to use straight out of the box. Still, for the price and the quantity, it is a solid purchase and a useful addition to any toolkit. ### ⭐⭐⭐⭐⭐ Good nuts and bolts *by O***L on 29 December 2025* Excellent all as advertised they are very useful ### ⭐⭐⭐⭐ Economy M4 bolts *by P***W on 27 November 2024* Bought these for use with bicycles. They are economical and the qualms adequate. Hex head is fine and works with all my tools. Huge selection of lengths and will keep me going forever. They don’t have the finish of a more expensive bolt but do the job. --- ## 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.us/products/670658517-1274-pcs-12-9-carbon-steel-bolts-and-nuts-set](https://www.desertcart.us/products/670658517-1274-pcs-12-9-carbon-steel-bolts-and-nuts-set) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*