300 Pcs Brass Heat Set Threaded Inserts M2 M2.5 M3 M4 M5 M6 for 3D Printing

Perfect fit for your 3D printed parts: Use our threaded inserts to seamlessly retrofit your 3D printed components, easily embedding into blind or through holes using heat or ultrasound. It is the best solution for adding threads to 3D printing.

eBay