220PCS Brass Heat Insert Nuts | M2-M6 Knurled Thread | Hot Melt Embedment Set

This 220-piece brass heat insert nut set provides a durable, permanent threaded solution for 3D printed parts and soft materials. The knurled, double-twill design ensures superior pull-out resistance ...
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Questions about this product
- How do I install these brass inserts into my 3D printed parts?
- You install these inserts using a soldering iron to melt them into pre-drilled holes. The heat transfers quickly through the brass, softening the surrounding plastic. As the plastic cools, it hardens around the knurled exterior for a permanent hold.
- What thread sizes and quantities come in this assortment kit?
- This 220-piece kit includes a mix of metric coarse thread sizes from M2 up to M6. The outer diameters range from roughly 4mm to 10mm, with lengths between 4mm and 8mm. They come organized in a single divided storage container so you can easily find the size you need.
- What types of materials can I use these heat insert nuts with?
- These work best with thermoplastics commonly used in 3D printing, like PLA, PETG, or ABS. You can also embed them into CNC-machined plastic panels and soft wood. They are compatible with any plastic that melts below the melting point of brass.
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