M3, M4, M5 Brass Heat-Set Threaded Inserts for 3D Printed Parts

The M3, M4, M5 Brass Heat-Set Threaded Inserts provide a reliable solution for adding durable metal threads to 3D printed plastic parts. They are designed to be installed into appropriately sized holes using a soldering iron or a suitable heat-insertion tool.

When heated, the surrounding thermoplastic softens and flows into the insert’s knurled exterior. Once the plastic cools, it forms a firm bond that helps keep the insert securely in place. This provides a more durable fastening point than directly threading a screw into plastic.

Featuring a double-helical knurled design, these brass inserts offer improved grip and help resist loosening or pull-out during assembly. They are suitable for creating strong screw connections in enclosures, brackets, mechanical components, prototypes, and custom 3D printed assemblies.

Available in M3, M4, and M5 sizes, these inserts make it easier to join multiple printed components using standard machine screws. They are particularly useful for projects that require repeated assembly and disassembly without damaging the plastic threads.

Key Features

• Durable Brass Construction: Provides strong, reliable metal threads for plastic components.

• Heat-Set Installation: Designed for installation using a soldering iron or compatible heat-insertion tool.

• Double-Helical Knurling: Helps create a secure bond between the insert and surrounding plastic.

• Reusable Threaded Connections: Supports repeated screw installation and removal.

• Multiple Sizes: Available in M3, M4, and M5 thread sizes.

• Wide Applications: Suitable for 3D printed enclosures, brackets, prototypes, and mechanical assemblies.

• Professional Finish: Creates neat and reliable fastening points in custom printed parts.

Specifications

Size Specifications

Applications

• 3D printed enclosures and housings

• Custom brackets and mounting components

• Mechanical assemblies and prototypes

• Robotics and DIY engineering projects

• Plastic parts requiring reusable screw connections

• Multi-part 3D printed designs

Installation Note

Choose the correct insert size and prepare a suitable hole according to the insert’s dimensions and the material being printed. Apply controlled heat during installation to allow the plastic to soften around the knurled surface without damaging the printed part.

Note: M3, M4, and M5 refer to different thread sizes. Please select the required size for your project before ordering.