M3 x 5mm Grub Screw DIN916 | Black Grade 12.9 Alloy Steel Cup Point Set Screw | For 3D Printers Pulleys Stepper Shafts Robotics CNC Motion Systems

Description ✅ M3 diameter – 5mm length✅ DIN916 – cup point for a strong hold✅ Grade 12.9 – high-strength alloy steel✅ Black oxide finish – corrosion resistance stealthy look✅ Hex drive – 1.5mm Allen wrench compatible✅ Common in 3D printers, CNCs, drones, and RC builds