DescriptionDo you want a kind of professional t track bolt? Do you want to install sliding screw into aluminum profile? This can be your best choice. Really practical and useful, just install it into your work.Features- Color: Silver -Material:Stainless steel - Size: 2.90X1.60X0.80cm/1.14X0.63X0.31in - Made of stainless steel, good rust resistance, high hardness and long service life. - As an integrated non-rotating washer, the serrations help avoid nut vibration and increase nut retention. - For aluminum profile design, suitable for standard 6mm T-slot 30 European standard aluminum profile. - Widely used to build 3D printers, 3D engravers, CNC routers, CNC cutters, CNC plasma cutters, robotic projects, machines, workstations, etc. - Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience.