--- product_id: 614049640 title: "HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces)" brand: "hanglife" price: "Β£9.63" currency: GBP in_stock: true reviews_count: 13 category: "Hanglife" url: https://www.desertcart.co.uk/products/614049640-hanglife-heat-set-threaded-inserts-m3-heat-set-insert-3d store_origin: GB region: United Kingdom --- # Heat-set installation ease M3 internal thread precision Brass corrosion resistance HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces) **Brand:** hanglife **Price:** Β£9.63 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your 3D prints with precision brass inserts that hold like a pro! ## Quick Answers - **What is this?** HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces) by hanglife - **How much does it cost?** Β£9.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/614049640-hanglife-heat-set-threaded-inserts-m3-heat-set-insert-3d) ## Best For - hanglife enthusiasts ## Why This Product - Trusted hanglife brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Compatibility:** Works flawlessly with all major thermoplastics including PLA, PETG, ABS, and moreβ€”perfect for 3D printing, automotive, and electronics. - β€’ **Durable Brass Construction:** Premium brass material ensures exceptional corrosion resistance and thermal conductivity for long-lasting performance. - β€’ **Precision Fit for 3D Prints:** Seamlessly retrofit your 3D printed parts with M3 inserts engineered for exact dimensional accuracy within 0.05mm tolerance. - β€’ **Bulk Pack for Pro-Level Projects:** 100-piece set offers ample supply for multiple projects, backed by top-tier quality that professionals trust. - β€’ **Effortless Heat-Set Installation:** Embed inserts quickly using heat or ultrasound for a secure, pull-out resistant fastening every time. ## Overview The HANGLIFE Heat-Set Threaded Inserts (M3, 100 pcs) are precision-engineered brass knurled nuts designed for seamless heat or ultrasound embedding into thermoplastic parts. Offering superior corrosion resistance, dimensional accuracy, and high torque stability, these inserts elevate the strength and reliability of 3D printed components and plastic assemblies across diverse applications. ## Description Product description Review: Fit will. Perform well. - Fitted well. Nice clean machining and the measurements are as specified. They install easily and hold screws well in the right materials. Review: Reliable, consistently sized, and fairly priced inserts - There are multiple options to choose from for heat inserts, which are indispensable for anyone who's serious about 3D printing. The quality varies tremendously, so does the price. However, this set checks all the boxes. I waited a bit with the review to test more than 1-2 of them and wow... these are definitely landing on my favorite list! After using over a dozen of them I can confidently say these are great. The thread quality is very good, the dimensional accuracy on the outside is within 0.05mm tolerance, and the brass has no sharp edges on it. They may not be the cheapest set, but the QUALITY is DEFINITELY worth the premium. In addition to being good quality, the ostensibly small touch of including the dimensions and a BIG picture on the packaging makes it extremely easy to identify them in a shop. I no longer need to make a custom label.... these are small things that make using the product way easier. This is my first set of the heat-set inserts from Hanglife, but for sure not the last one! ## Features - Perfect Fit for Your 3D Printed Parts: Retrofit your 3D printed components seamlessly with our threaded inserts, effortlessly embedded using heat or ultrasound into blind- or through-holes. Providing a reliable and secure method for fastening components in 3D printing projects. Elevate the strength and functionality of your creations with ease. - Secure Hold with Simple Application: The opposite spiral-shaped knurled nuts provide a balanced high tightening torque, ensuring a stable connection. Our heat set inserts offer seamless installation onto plastic components, resisting torque and preventing pull-out. - Durable and Corrosion-Resistant: Crafted from high-quality brass, our threaded inserts provide optimal corrosion resistance and thermal conductivity. Exceptional durability and high resistance to breaking or deformation make them a reliable choice for various applications. - Versatile Compatibility with Plastics: Designed for all thermoplastics, including PLA, PETG, ABS, PPS, PP, and more, these inserts find applications in 3D printers, electrical molding machines, automotive plastic shells, and laptop molds. Their versatility ensures compatibility across a wide range of materials. - Practical Thread Insert Set: This M3x5x4 set includes 100 insert nuts with M3 internal thread, 5mm width, and 4.0mm length. Explore various dimensions of heat-set inserts at HANGLIFE to find the perfect fit for your specific needs. Drop down the variations to discover more choices. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CS6VZYL8 | | Best Sellers Rank | #3,788 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Nut Inserts | | Brand | Hanglife | | Color | M3 x D5 x L4(100pcs) | | Compatible Groove Diameter | 3.4 Millimeters | | Customer Reviews | 4.8 out of 5 stars 1,090 Reviews | | Drive Style | Spline | | Exterior Finish | Brass | | Fastener Type | Knurled | | Finish Types | Unfinished | | Inside Thread Size | M3 | | Item Diameter | 3.4 Millimeters | | Item Dimensions | 0.12 x 0.12 x 0.12 inches | | Manufacturer | Hanglife Group | | Material | Brass | | Material Type | Brass | | Metal Type | Brass | | Number Of Items | 1 | | Number of Pieces | 100 | | Part Number | HLTI-SET-001 | | Screw Head Style | Square | | Set Name | Brass M3 Knurled Nut Set (100 Pieces, 5mm x 4mm) | | Size Name | Onesize | | Thread Coverage | Fully Threaded | | Thread Size | M3 | | Thread Style | Right Hand | | Thread Type | Iso Metric | | Unit Count | 100.0 Count | ## Product Details - **Color:** M3 x D5 x L4(100pcs) - **Exterior Finish:** Brass - **Fastener Type:** Knurled - **Material:** Brass - **Thread Size:** M3 ## Images ![HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces) - Image 1](https://m.media-amazon.com/images/I/719dwHWdTxL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fit will. Perform well. *by P***R on December 18, 2025* Fitted well. Nice clean machining and the measurements are as specified. They install easily and hold screws well in the right materials. ### ⭐⭐⭐⭐⭐ Reliable, consistently sized, and fairly priced inserts *by H***G on March 3, 2024* There are multiple options to choose from for heat inserts, which are indispensable for anyone who's serious about 3D printing. The quality varies tremendously, so does the price. However, this set checks all the boxes. I waited a bit with the review to test more than 1-2 of them and wow... these are definitely landing on my favorite list! After using over a dozen of them I can confidently say these are great. The thread quality is very good, the dimensional accuracy on the outside is within 0.05mm tolerance, and the brass has no sharp edges on it. They may not be the cheapest set, but the QUALITY is DEFINITELY worth the premium. In addition to being good quality, the ostensibly small touch of including the dimensions and a BIG picture on the packaging makes it extremely easy to identify them in a shop. I no longer need to make a custom label.... these are small things that make using the product way easier. This is my first set of the heat-set inserts from Hanglife, but for sure not the last one! ### ⭐⭐⭐⭐⭐ Great inserts! *by M***K on December 21, 2025* Threads are very clean & inserts are very easy to install. No issues with the inserts pulling out once installed. Wish there were more larger sized inserts & fewer smaller inserts. ## Frequently Bought Together - HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces) - Heat-Set Insert Tips for Threaded Inserts M2 M2.5 M3 M4 M5 M6 M8, Soldering Iron Tips Compatible with Weller SP40NUS/Hakko FX-888D/900M/T18 Irons- Press Tool for Plastic 3D Printer Components - Kadrick Metric Screws Assortment,2240 Pcs M3 Screws Nuts Washers Assortment M3x4MM-35MM, Hex Socket Button & Cap Head M3 Machine Bolts Kit, 12.9 & 10.9 Grade Alloy Steel,Black Screws for 3D Printing --- ## 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.co.uk/products/614049640-hanglife-heat-set-threaded-inserts-m3-heat-set-insert-3d](https://www.desertcart.co.uk/products/614049640-hanglife-heat-set-threaded-inserts-m3-heat-set-insert-3d) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-23*