1.Made of carbon steel, Nickel plated or Zinc plated Finished.2.T-Nut with M4 thread.3.Suitable for standard 20mmx20mm aluminum profile extrusion slot.4.Easy to be roll into T slot of aluminum profile.5.Could be used together with T screw/hex screw Specification:Material: Carbon SteelFinish: Nickel plated or Zinc platedThread Type: M4Length: Aprrox.10mm/0.39"Width: Aprrox.10mm/0.39"Height: Aprrox.4.4mm/0.17"Package Content: 20 x M4 T-Nuts
