120PCS M3 Hexagon Copper Pillar Screw Kit with Plastic Box

M3 hexagon copper pillar screw kit is a 120-piece standoff and screw set for mounting PCBs, stacking boards, and creating secure spacing inside electronics builds. Designed for makers, repair work, and prototyping, these M3 threaded hex spacers help fasten controller boards, sensor modules, cases, and panels in projects using Arduino, Raspberry Pi, ESP32, robotics, and DIY enclosures. The included plastic storage box keeps the assorted hardware organized for bench use, making this a practical choice for PCB assembly, motherboard spacing, instrument panels, and general electronics hardware needs.