400PCS Brass Threaded Inserts, Premium Metric Heat Set Insert M2 M2.5 M3 M4 M5 M6 - Perfect Assortment for 3D Printing Projects, Brass Heat Set Insert for Plastic and 3D Printing

About this item

• 【1】Perfect Assortment for 3D Printing Projects: Our Metric Brass Knurled Nuts Assortment Kit includes 6 commonly used metric sizes: M2, M2.5, M3, M4, M5, M6, with a total of 400 brass heat-set inserts. Each size is stored in a separate compartment for easy access and organization. Abundant quantity with complete specifications, ideal for beginners, makers and daily backup.
• 【2】Premium Quality: Our Brass Heat Set Insert Made of high-quality solid brass with smooth, burr-free surface and precision-cut threads. True-to-size threading ensures tight screw fit, no stripping or cross-threading. Reinforced structure offers excellent wear resistance, rustproof and long service life for long-term repeated use.
• 【3】Anti-Loosening & Superior Holding Power: Our female thread knurled nuts assortment with unique tapered bottom and eight-diagonal knurling design effectively prevents rotation and pullout. After heat embedding, molten plastic fills the knurled texture tightly, greatly improving torsion and tensile strength. Firmly locked in PLA, PETG, ABS and other plastic parts without falling off.
• 【4】Easy to Use: Brass threaded inserts for plastic metric can be installed into components of a 3D printer through heating or ultrasonic methods, or molded during the injection process. They are also suitable for circuit board assembly and the electronics field. With a common soldering iron, we can easily place them into the holes of 3D prints.
• 【5】Wide Compatibility: Comes with M2, M2.5, M3, M4, M5, M6 standard metric sizes to meet most DIY, 3D printing and plastic assembly needs. Perfect for 3D printed projects, electronic housings, smart home parts, hobby crafts and equipment modification.
• 【6】Warning: Small parts included. Keep away from children to prevent choking hazard.