Heated inserts M4 (OD6mm) - 5pcs

M4 heated inserts deliver reliable threaded connections for 3D printed parts. These inserts feature a 5mm outer diameter and are designed to be pressed into thermoplastic materials using a soldering iron or heat gun, creating permanent brass threads that withstand repeated assembly and disassembly cycles.

Ideal for 3D printing projects where you need durable screw bosses without the weakness of printed threads. Simply heat the insert and press it into a pre-drilled hole in your plastic model — the heat melts the surrounding material, ensuring a secure fit that won't strip or pull out.

Pack of 5 units. Perfect for enclosures, brackets, mounts, and any prototype requiring metal fastening points.