20pcs/lot Black 2020 Series L Shape Interior Inside Corner Connector Joint Bracket with Screws for 20x20 Aluminum Extrusion Profile Slot 6mm

Packed: 20pcs l joints brackets + 40pcs set screws + 1 wrench for set screw,more convenient than l-shape only. Material: electrophoresis zinc alloy, has excellent features in high abrasion resistance, rust proof and stability. Advantage: concealed corner brace, the l corner bracket can be completely hidden in the slot of the aluminum extrusions. Suitable for 2020 standard aluminum profiles slot 6mm and other suitable size profiles. 2020 series aluminum profile connector set widely used for building industrial aluminum frame structures, 3d printers, cnc routers, cnc laser cutters, robotics projects, 3d carvers, machine guards, workstations, etc., Weight: 0.48942622164 pounds, Manufacturer: Tongling Hardware