Heat Set Insert Nuts | 220pcs Kit for 3D Printing | M2-M6 Knurled Threaded Inserts

This comprehensive 220-piece set of brass heat-set inserts provides a professional, durable threading solution for 3D printed parts and plastic models. The knurled exterior ensures a permanent, pull-out resistant bond when melted into place, creating robust metal threads in plastic substrates. Features and Benefits - High-Quality Brass Construction - Ensures excellent thermal conductivity for easy installation and provides strong, wear-resistant internal threads - Knurled Outer Surface - Creates a superior mechanical lock within the plastic, preventing rotation or pull-out under load - Comprehensive Size Range (M2-M6) - Covers the most common metric thread sizes for maximum versatility across various projects - 220-Piece Assortment - Offers ample quantities for prototyping and production, reducing downtime and ensuring consistent results Applications - Adding durable threaded connections to functional 3D printed prototypes and end-use parts - Reinforcing screw points in resin models, drones, and RC vehicle frames - Upgrading consumer electronics enclosures and DIY project assemblies with metal threads