--- product_id: 601553051 title: "Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts" brand: "kadrick" price: "€ 52.26" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.at/products/601553051-kadrick-420pcs-m3-m4-m5-threaded-inserts-assortment-kit-3d store_origin: AT region: Austria --- # organized labeled storage box heat-set for plastic embedding 420 precision brass inserts Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts **Brand:** kadrick **Price:** € 52.26 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your 3D prints with precision brass inserts—because your projects deserve the best! ## Quick Answers - **What is this?** Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts by kadrick - **How much does it cost?** € 52.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/601553051-kadrick-420pcs-m3-m4-m5-threaded-inserts-assortment-kit-3d) ## Best For - kadrick enthusiasts ## Why This Product - Trusted kadrick brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Knurled Grip:** Knurled design ensures superior tensile strength and secure fixation, outperforming standard inserts. - • **Effortless Organization:** Clearly labeled compartments in a sturdy plastic case keep your workflow smooth and frustration-free. - • **Trusted Quality & Warranty:** Backed by rigorous testing and a 24-month warranty, engineered for professionals who demand reliability. - • **Ultimate 3D Printing Upgrade:** Heat-set brass inserts deliver durable, corrosion-resistant threads for flawless plastic part assembly. - • **Comprehensive Metric Assortment:** 420 pieces covering M3, M4, and M5 sizes—perfectly tailored for the most popular 3D printing needs. ## Overview The Kadrick 420Pcs Threaded Inserts Assortment Kit offers a premium selection of heat-set brass knurled inserts in M3, M4, and M5 sizes, designed specifically for embedding into plastic 3D printed parts. With superior corrosion resistance, excellent heat conduction, and a knurled design for enhanced grip, this kit ensures durable, professional-grade threaded connections. Packaged in a clearly labeled, compartmentalized box, it streamlines your workflow and is backed by a 24-month warranty for peace of mind. ## Description Kadrick is a company specializing in fastener design and manufacturing, we are committed to providing professional fastener solutions to our customers. We have a laboratory where products can be tested for various mechanical properties, hardness, film thickness, salt spray resistance time, material composition, and application. "This product is a threaded insert set for 3D printing, after our market research, we chose some of the more commonly used specifications, M3 M4 M5 and with M3 as the main, these specifications are most popular among 3D printing enthusiasts. For the convenience of users, we have labeled the exact dimensions of the products. If you need screws, you can buy our screw sets at the same time, they fit perfectly!" Product Specifications and Quantities: M3xH3 - 60 Pcs; M3xH4 - 60 Pcs; M3xH5 - 60 Pcs; M3xH6 - 60 Pcs; M3xH8 - 60 Pcs; M3xH10 - 60 Pcs; M4xH8 - 30 Pcs; M4xH10 - 25 Pcs; M5xH10 - 20 Pcs; M5xH12 - 15 Pcs; We use a small plastic box with clear sorting to put these little things. In order to prevent the products from being mixed up, we also prepare another outer packaging to ensure that the products will not be damaged during transportation. No damage during transportation. Keep a set of Kadrick heat-set insert on hand to make your work easier! ## Features - Suitable for 3D printing: Brass threaded inserts, which can be embedded into plastic materials using the heat from a soldering iron or ultrasound, are the optimal solution for adding threads in 3D printing. - Common specifications: We have created this set of inserts using a large quantity of M3 inserts combined with M4 and M5 inserts, based on the most commonly used specifications by 3D printing enthusiasts. The heights range from 3mm to 12mm. We hope you will like it. - Secure fixation: Our brass threaded inserts are made of high-quality brass and undergo precision processing, ensuring excellent heat conduction and corrosion resistance. Through testing, we have found that compared to straight-threaded inserts, the knurled threaded inserts provide stronger gripping strength and can withstand high levels of tensile force. - Clear labeling: Each specification has its own independent compartment in the plastic box, and we have attached labels with detailed annotations for key data, making it convenient to use. - Brand guarantee: Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CPVCTXJ7 | | Best Sellers Rank | 598,909 in DIY & Tools (See Top 100 in DIY & Tools) 736 in Nut Inserts | | Brand Name | Kadrick | | Colour | yellow | | Compatible Groove Diameter | 1.6 Millimeters | | Customer Reviews | 4.8 4.8 out of 5 stars (254) 4.8 out of 5 stars | | Drive Style | Spline | | Exterior Finish | Brass | | Fastener Type | Insert | | Finish Types | Polished | | Grade Rating | commercial | | Inside Thread Size | M3 | | Item Dimensions | 6.9 x 12.7 x 2.3 centimetres | | Manufacturer | Kadrick | | Manufacturer Part Number | 047-HIK-M3-M5-420 | | Material Type | Brass | | Metal | Brass | | Number Of Items | 1 | | Number Of Pieces | 420 | | Thread Class | Class 2B | | Thread Coverage | Fully Threaded | | Thread Size | M3 | | Thread Style | Right Hand | | Thread Type | ISO Metric | ## Product Details - **Brand:** Kadrick - **Colour:** yellow - **Exterior finish:** Brass - **Fastener type:** Insert - **Finish type:** Polished - **Item dimensions L x W x H:** 6.9 x 12.7 x 2.3 centimetres - **Material:** Brass - **Metal type:** Brass - **Thread size:** M3 - **Thread type:** ISO Metric ## Images ![Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Image 1](https://m.media-amazon.com/images/I/81U+UVv0VmL.jpg) ![Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Image 2](https://m.media-amazon.com/images/I/71CTryyVKCL.jpg) ![Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Image 3](https://m.media-amazon.com/images/I/718RqOPqGgL.jpg) ![Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Image 4](https://m.media-amazon.com/images/I/711W9BfRdDL.jpg) ![Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Image 5](https://m.media-amazon.com/images/I/716JYaQosXL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good qaulity, nice selection, fair price. *by on Reviewed in the United States 26 January 2026* I appreciate the nice selection of sizes and overall quality of these inserts. They work fine for my applications. Install easily using the Kadrick soldering iron tips. Since my application tends to be "one and done" use where the screw is seldom, if ever, removed, I can't comment on durability. I don't see any red flags that make me think these are less durable than any others that I have used.If I have one negative comment, it is that I would like the assortment to include more sizes of M4 and perhaps fewer M3. That said, this provides plenty of selection for prototyping parts and validating design and functionality. If I find that a different length insert in the prototyping stage, that is easy to resolve when I purchase larger quantities for production runs. ### ⭐⭐⭐⭐⭐ Excellent budget set would recommend *by on Reviewed in the United States 27 February 2026* Great set of screw inserts for those who are on a budget. All inserts are machined well and screws thread very nicely into the insert. Would recommend to purchase. Set also has a nice variety of inserts as well. ### ⭐⭐⭐⭐⭐ work well in 3d prints *by on Reviewed in the United States 15 May 2026* the threads are cut well. paired with a good iron to insert in a 3d print they are working well ## Frequently Bought Together - Kadrick 420Pcs M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts - Kadrick Metric Screws Assortment - 2240 Pcs M3 Nuts Washers Kit, M3x4MM-35MM, Hex Socket Button & Cap Head Machine Bolts, 12.9 & 10.9 Grade Alloy Steel, Black for 3D Printing - Heat Set Insert Tool,Tips for Threaded inserts M2 M2.5 M3 M4 M5 M6, Soldering Iron Tips for 3D Printer Users,Compatible with 900M/T18/FX-888D Irons- Press Tool for Plastic 3D Printer Components --- ## 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.at/products/601553051-kadrick-420pcs-m3-m4-m5-threaded-inserts-assortment-kit-3d](https://www.desertcart.at/products/601553051-kadrick-420pcs-m3-m4-m5-threaded-inserts-assortment-kit-3d) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-22*