4040 T-Slot Aluminum Extrusion, 600 mm, 4 Pack, Black

4040 aluminum extrusion profile rails deliver rigid, square alignment for smooth motion systems and reliable frames in 3D printer, CNC, and laser engraving builds. This 4-pack of European standard anodized T-slot linear rail sections is precision-cut for burr-free sliding, reduced friction, and fast, adjustable assembly. Designed for modular DIY machines, automation equipment, workbenches, and furniture structures where strength, corrosion resistance, and clean fitment matter.

• Delivers rigid 40x40 mm support for stable frames, gantries, and linear rail builds


• Includes 4 anodized rails, 600 mm each, for modular CNC/3D printer/automation projects


• Fits M6 and M8 T-slot nuts for quick assembly, adjustment, and add-on accessories


• Reduces friction with precision-cut, burr-free surfaces for smoother travel and less wear


• Resists corrosion with anodized 6063-T5 aluminum for humid or dry workshop conditions

Build cleaner, straighter structures without welding. These T-slot aluminum extrusion profiles make it easy to square up frames, reposition brackets, and expand your machine later as your design evolves. The European standard 4040 format is widely used across DIY CNC routers, 3D printers, linear motion rigs, enclosures, benches, and custom furniture, helping you source compatible hardware and accessories with less guesswork. If you’re refreshing a worn frame or starting a new build, grab yours today and keep your project moving forward.

• Quantity: 4 pieces


• Profile: 4040 T-slot (40 x 40 mm)


• Length (each): 23.62 in / 600 mm


• Material: 6063-T5 aluminum alloy


• Surface treatment: Anodized


• Compatible T-slot nut sizes: M6, M8


• Center hole size: Φ0.26 in / Φ6.8 mm


• Net weight (set): 5.84 lb / 2.65 kg