100p/lot T Block Square Nut M3 M4 M5 M6 M8 T-Track Sliding Hammer Nut for 20 30 40 45 Aluminum Profile Slot Connector Accessor

Note: Only 3030 series colors are nickel-plated

Others are blue zinc plated

1. Material: Made from high quality carbon steel Galvanized,surface is plated with nickel and Zinc-plated for good rust resistance and better performance high hardness and a long service life;

2. Easy to Use: Sliding T-Nuts widely used for building industrial aluminum frame structures, 3D printers, CNC Routers, CNC laser cutters, Robotics Projects, etc;