Features: Crafted from premium aluminum, these T shaped corner brackets ensuring 90 degree connection for 2020 series aluminum profiles, offering exceptional durability and corrosion resistance without requiring screws. The 60x60x3.6mm connector plates feature precisely 5mm mounting holes, enabling quick assembly for industrial frame and 3D printer Ideal for engineers, and industrial requiring reliable structural components for equipment, prototyping workstations, or furniture projects. Suitable for constructing in 3D printing environment, workshop machinery setups, and heavy duty aluminum profile creations. These anodized silver connectors maintain color integrity under heavy use while providing compatibility with 6mm slot 2020 series extrusion systems across multiple applications. Specifications: Component:Aluminum Size:Approx. 60x60mm/2.36x2.36inch Package Includes: 4Pcs Corner Bracket Plate note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.