This 80/20 T nut measures .395 x .200 x .620 inches long with a 1/4-20 thread and comes with a rubber flex handle. For use with 1010, 1020, 2020, and any other 1.0" based aluminum extrusions. Made out of 1215 steel with a black zinc finish. The rubber flex handle allows you to move this t-nut easily while in the 8020 extrusion t-slot channel. This tslot 80 20 t nut works with 1/4-20 bolts (not included) to attach joining plates, corner brackets, hinges, and other t track accessories to 80/20 aluminum extrusion. This high quality and sturdy 1/4 20 nut will make a great addition to your fasteners hardware toolbox. Perfect for any home improvement enthusiast or general DIY'er. This t-nut can be used in a wide variety of applications including 3d printers, cnc machine, building industrial aluminum frame structures, CNC laser cutters, Robotics Projects and more. The roll-in T-nut with flex handle is a fastening option that loads from either the profile ends or side, which is helpful in applications where the ends are inaccessible. The flex handle sticks out past the profile to make it easy to position and move within the T-slot.