Brass threaded inserts, to be pressed into your 3D printed projects with a heated soldering iron(not included).
Avalible in packs of 20 pieces of individual sizes or a multi pack of 100 pieces.
Multi pack contains:
20x M3 x 3mm (OD4.5mm)
20x M3 x 5mm (OD4.5mm)
10x M3 x 8mm (OD4.5mm)
20x M4 x 4mm (OD5.5mm)
20x M4 x 5mm (OD5.5mm)
10x M4 x 8mm (OD5.5mm)