300 Pcs M3 Heat Set Threaded Brass Inserts Knurled For Plastic 3D Printing Secure Fastening M3 x D5 x L4 Bulk Pack For DIY Projects Electronics And PCBs Makers Kit

Bulk 300 M3 Brass Heat-Set Inserts for Plastic
✔️ Bulk pack: 300 M3 brass heat-set inserts for plastics

These M3 heat-set brass inserts are designed to anchor threaded holes in plastic parts. They’re ideal for 3D printed components, electronics enclosures, and PCBs, providing secure, long-lasting fastening.

✅ Bulk pack of 300 pieces for DIY, electronics, and PCBs
✅ Brass construction with gold color; burr-free and robust
✅ M3 thread, outer diameter 5.0 mm (0.197 in), length 4.0 mm (0.157 in)
✅ Installed by heat-set or ultrasonic methods into plastic without countersunk holes
✅ Knurled outer surface for strong bite and secure fixation

💡 What is a heat-set brass insert used for in plastic assemblies? Handy fasteners create durable threaded holes for screws in plastic parts, ideal for DIY projects and electronics enclosures. - Improves screw retention in plastic pieces - Easy to install with heat-set or ultrasonic methods - Provides durable threads for electronics, PCBs, and DIY projects