[M3]
[M4]
[M5]
[M6]
"50pcs M4 T Slot Nuts This high quality carbon steel nut is ideal for 20 rail aluminum and is widely used as an aluminum profile accessory. High hardness, surface has good rust resistance, nickel plated. Product specifications are carbon steel and galvanized surface, size is 10*10(L*W), nut is M3 standard. Package contains 50pcs T-slot nuts. It mounts smoothly to the T-slot with an aluminum profile, and is very practical in aluminum frame construction and other projects. Industrial aluminum frame construction, 3D printers, CNC routers, robotics projects, and many more. The product is reliable and easy to use. The perfect accessory for a sturdy and secure bond in your profile. "