100pcs M3x5.7x4.6mm Thread Knurled Brass Threaded Heat Set Heat Resistant Insert Embedment Nut for 3D Printer accessories

100pcs M3 M3x5.7×4.6mm Thread Knurled Brass Threaded Heat Set Heat Resistant Insert Embedment Nut for 3D Printer
Features
– Material: Copper.
– Used on injection moulding for tightly fixing.
– No need to counterbore or countersink the boss hole because the insert has guide pilot.
– All nuts are made of high quality brass, which has high hardness, no deformation, durable and reliable for long use.
– Easy to install: From the moment that the insert has a valve conduit, there is no need to back-drill and counter-sink the hole.
– Can be installed by ultrasonic or heat in tapered bore wire, or molded in during injection.
Packing list
100 x embedment nut