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.