M3 Hex Nut – 304 Stainless Steel | Metric M3 Nut for 3D Printers, CNC, Robotics, and Frame Assembly

Description ✅ Metric M3 thread – 3mm diameter✅ Made of 304 stainless steel – rustproof and strong✅ Ideal for 2020/2040 aluminum extrusions✅ Great for 3D printers, CNC builds, robotics & electronics✅ Pairs with M3 bolts, washers, and T-slot nuts