100Pcs M3 Thread Knurled Brass Threaded Heat Set Heat Resistant Insert Embedment Nut,M3X5X4,for 3D Printer Voron 2.4 Etc

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. colour: gold Material: brass Package Contents: 100 x M3x5x4 NutsOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.