Adafruit Brass Heat-Set Inserts for Plastic - M3 x 4mm - 50 pack

Enhance the strength and aesthetics of your 3D-printed projects with machine screws and heat-set inserts. Say goodbye to unreliable glues and screws; opt for precision and durability.These inserts boast a grooved external texture and internal threads, originally crafted for injection-molded components but equally at home with 3D prints.Utilize a standard soldering iron to heat-press them into place, securing them like embedded hex nuts. Maximize precision with our recommended heat-set insert tool for optimal alignment and protection of your prints.Available in a convenient 50-pack of M3-threaded, 4mm-long inserts, each piece offers exceptional reliability for your innovative creations.