1.Made of high-quality carbon steel, Nickel /Zinc plated Finished.
2.T-Nut with M3 M4 M5 M6 thread.
3.Suitable for standard 30mmx30mm aluminum profile extrusion 8 slot.
4.Put the nuts into the slot in the profile slot, rotate it 90 degrees clockwise, and automatically position the lock during the installation process, usually used with the hexagon socket head bolt.