150 Pieces M3 Knurled Threaded Inserts For 3D Printing Heat Set Brass Nuts For Embedding In Plastic Shells Durable No Fuss Install High Temp Rust Resistant

Premium M3 Brass Heat-Set Inserts for 3D Printing
✔️ 150 pcs in storage box, rust resistant, high-temp brass

These heat-set brass nuts are designed to embed into printed plastic parts to create durable M3 threaded holes, commonly used in 3D printers, hobby projects, and small devices.

✅ Made from corrosion-resistant brass
✅ Knurled thread pattern for secure embedding
✅ Heat-set compatible for fast installation
✅ Includes 150 inserts in a sturdy storage box
✅ Works with PETG, ABS, PLA, PC, PA plastics

💡 What is a heat-set brass insert used for in 3D printed parts?

They create durable threaded holes in plastic for mounting hardware.

- High strength threaded holes in various plastics
- Easy heating for quick installation with a soldering iron
- Improves screw retention and aligns parts
- Suitable for hobby and professional projects