--- product_id: 658525295 title: "100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell" brand: "aiex" price: "£44.43" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/658525295-100pcs-3d-printing-brass-nuts-m3x4x5mm-m3-threaded-insert-knurled store_origin: GB region: United Kingdom --- # Heat resistant >300°C 100pcs bulk pack Precision M3 threading 100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell **Brand:** aiex **Price:** £44.43 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your 3D printing game with brass nuts that mean business! ## Quick Answers - **What is this?** 100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell by aiex - **How much does it cost?** £44.43 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/658525295-100pcs-3d-printing-brass-nuts-m3x4x5mm-m3-threaded-insert-knurled) ## Best For - aiex enthusiasts ## Why This Product - Trusted aiex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive 100-piece set:** Never run out during your 3D printing projects—bulk supply for endless creativity. - • **Precision M3 threading:** Engineered for a perfect fit with your 3D printer parts and plastic shells. - • **Knurled for maximum grip:** Inclined thread knurls boost torque resistance, ensuring a tight, scratch-free hold. - • **Premium heat-resistant brass:** Withstands temperatures over 300°C to keep your prints flawless and durable. - • **Versatile plastic compatibility:** Ideal for PC, PLA, ABS, PETG and more—perfect for automotive, laptop, and electrical molding. ## Overview This pack of 100 knurled brass nuts features precision M3 threading and premium brass construction that resists deformation and heat up to 300°C. Designed for easy heat embedment into various plastics, these nuts provide a secure, scratch-free fit for 3D printers, automotive parts, and electronic housings—making them an essential upgrade for any serious maker or professional. ## Description Specification: Color: brass color Material: quality brass Product Size: as show in the detail picture Package details: 100 x knurled brass nut Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between different monitors, there may be a slight color difference existed. ## Features - Package Content: You will get 100pcs 3D printing brass nuts, super large quantity can meet your needs of connecting numerous 3D printing accessories. Each knurled brass nut measures about M3x4x5mm / M3x0.16x0.2inch, please ensure that the size of the nuts can well match your 3D printer. - Premium Material: The threaded inserts for 3D printing are made of high quality brass, extremely sturdy, not easy to break or deform, also can withstand high temperature above 300°C / 572°F. Excellent thermal conductivity also makes your 3D printer to work more effectively. - Easy to Install: The knurled brass nuts can be easily installed into the the tapered holes of 3D printers by heating, also can be molded by injection molding. The 3D printing brass nuts with full knurled patterns can perfectly match with your 3D printers. Practical nuts make your 3D printer work well. - Good Workmanship: With clean surface and twill thread knurled patterns, the nuts can be installed onto 3D printers and fit perfectly and won't scratch your precious 3D printing parts. The smaller diameter of the front end of the nut allows you insert them into 3D printing hole precisely. Inclined thread knurls increase the torque resistance, so they can be fixed on the 3D printers tightly. - Wide Application: These m3 threaded insert nuts can be inserted into various plastics, such as PC, PA, PLA, ABS, PETG, etc. Suitable for installing on 3D printers, electrical molding machines, electrical injection molding, automotive or laptop molding plastic shells, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Brass, Plastic | | Fastener Type | Knurled | | Thread Size | M3 | | Exterior Finish | Brass | | Colour | brass color | | Metal Type | Brass | | Finish Type | Brass | | Brand | AIEX | | Thread Type | Iso Metric | | Inside Thread Size | 3mm | | Thread Style | M3 | | Thread Coverage | Fully Threaded | | Thread Class | metric | | Size | Brass | | Item Diameter | 3 Millimetres | | Number of Pieces | 100 | | Manufacturer | AIEX | | Country of Origin | USA | | Model number | B16155 | | Specific Product Use | plastic | | Item Weight | 32 g | | Item model number | B16155 | | Are batteries included? | No | ## Product Details - **Material:** Brass, Plastic - **Fastener Type:** Knurled - **Thread Size:** M3 - **Exterior Finish:** Brass - **Colour:** brass color - **Metal Type:** Brass - **Finish Type:** Brass - **Brand:** AIEX - **Item dimensions L x W x H:** 10 x 50 x 50 Millimeters - **Thread Type:** Iso Metric ## Images ![100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - Image 1](https://m.media-amazon.com/images/I/71FLFeaIfeL.jpg) ![100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - Image 2](https://m.media-amazon.com/images/I/61hrNShzx5L.jpg) ![100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - Image 3](https://m.media-amazon.com/images/I/610saMoUmUL.jpg) ![100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - Image 4](https://m.media-amazon.com/images/I/71rpzm2ug0L.jpg) ![100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - Image 5](https://m.media-amazon.com/images/I/61UoM7kYhKL.jpg) ## Frequently Bought Together - AIEX 100pcs 3D Printing Brass Nuts, M3x4x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell - 440 Pcs M3 Bolts and Nuts Set, Hex Socket Button Head Cap Screws Bolts Nuts Assortment Kit, Stainless Steel Replacement Machine Fastener Screws Bolts Nuts Sets - 40 Pack Extra Strong Magnets 6mm X 3mm, Neodymium Magnet for White Board, Fridge, Pin Board and DIY Picture --- ## 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.co.uk/products/658525295-100pcs-3d-printing-brass-nuts-m3x4x5mm-m3-threaded-insert-knurled](https://www.desertcart.co.uk/products/658525295-100pcs-3d-printing-brass-nuts-m3x4x5mm-m3-threaded-insert-knurled) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-06*