300Pcs Brass Threaded Inserts Kit M2 M2.5 M3 M4 M5 M6 Knurled Heat Set Inserts for 3D Printing, Plastic Parts, Furniture

300Pcs Brass Threaded Inserts Kit M2 M2.5 M3 M4 M5 M6 Knurled Heat Set Inserts for 3D Printing, Plastic Parts, Furniture Assembly

📏 Multiple Size Options

Perfectly suitable for 3D printing, plastic injection molding, automotive electronics, DIY crafts, medical devices and other fields, meeting diverse fastening needs.

📦 Wide Application Scenarios

Unique knurled and twisted texture design, which enhances the grip with plastic materials, effectively preventing pull-out or rotation after installation, greatly improving connection stability.

🛠️ Premium Brass Material

Available in 3mm inner diameter, with 4mm/5mm length options, compatible with most standard M3 screws, easy to match different project requirements.

✅ 300pcs All-in-One Kit | M2-M6 Sizes for All Projects
✅ Heavy-Duty Brass: Anti-Rust, Heat-Resistant & Built to Last
✅ Knurled Lock Design: Zero Slippage, Zero Pull-Out
✅ Perfect for 3D Printing, DIY, Repairs & Furniture
✅ Organized Storage Case IncludedUpgrade every project to professional-grade strength today!