Brass Pro Grade Heat Set Insert Nuts For 3D Printing M3 Size 120 PC Pack Anti Spin Threaded Inserts For Plastic Builds With 360 Degree Anti Rotation Grip And Quick Easy Heat Set Installation

Brass Heat-Set M3 Inserts for 3D Printing, 120-Pack
✔️ 360° anti-rotation grip; quick heat-set in 3-5 sec

These Brass Pro Grade Heat Set Inserts are designed for 3D printed parts and other plastics, delivering strong, durable threads with a 360° anti-rotation grip. They're ideal for motor mounts, drone frames, RC cars, and custom enclosures where reliable threaded joints matter.

✅ 360° anti-rotation grip via spiral knurl and serrated flange
✅ Heat-set ready: install in 3-5 seconds with a soldering iron at 150-200°C
✅ Brass alloy provides 2x faster heat transfer vs steel and resists corrosion
✅ M3×0.5 thread, 3 mm length, 4.2 mm OD; precise knurled inserts
✅ Pack size: 120 pcs; compatible with PLA, PETG, ABS, Nylon, PC, POM, wood, and composites

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

- It creates durable, threaded holes in plastic so you can fasten parts with screws - It distributes load through the insert, reducing wall cracking in thin sections - You heat-set with a soldering iron around 150-200°C for a secure, long-lasting fit - Brass inserts provide good heat transfer and corrosion resistance for electronics and hobby projects