2020 Series Aluminum Profile Connector Set widely used compatible with building industrial aluminum frame structures, 3D printers, CNC Routers, CNC cutters, Robotics ProjectsCast Aluminum Corner Bracket used to connect pieces of 20mm aluminum extrusion at a 90 degree angle suitable compatible with most of metric 20 Series Aluminum Profile ExtrusionT-Slot Aluminum Extrusion M5x10mm Hardware Slide In T-Nuts made from carbon steel Galvanized,surface is plated with nickel compatible with good rust resistance and better percompatible withmance high hardness and a long service life. Carbon steel Hex Socket Button Head Bolts Screws Nuts Surface chrome finish Anti-corrosion,rustless,non-pollution and high-hardness.used widely in the home and office appliance, communication equipments, ship assembly and other machinery industrycolour:SilverMaterial:Aluminum alloyPackage Contents:10 x corner stand20 x M5 x 10mm T-nuts20 x M5 x 10mm screwsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.