Use on 20mm x 20mm Extrusion Profile, 2020 Series Aluminum Profile Connector Set widely used for building industrial aluminum frame structures, 3D printers, CNC Routers, CNC laser cutters, Robotics Projects.

Package include: 20pcs 20x28mm ( 0.78" x 1.1" ), 90 Degree Solid Cast Aluminum Corner Bracket

,40pcs Carbon Steel Galvanized M5 x 8mm T-slot Nuts,

40pcs Stainless Steel M5x8mm Hex Socket Cap Screw Bolt.

Aluminum Corner Bracket used to connect pieces of 20mm aluminum extrusion at a 90 degree angle suitable for most of metric 20 Series Aluminum Profile Extrusion.

Stainless Steel Hex Socket Button Head Bolts Screws Nuts Surface chrome finish Anti-corrosion,rustless,non-pollution.

T-Slot Aluminum Extrusion M5x8mm Hardware Slide In T-Nuts made from high quality carbon steel Galvanized.