8Pack Inside Corner Bracket Gusset 42x42x41mm 4545 for 4545/5050 Series Aluminum Extrusion Profile Silver

Description： Made of aluminum die casting alloy with a sandblasting surface this aluminum corner bracket is of good rust resistance high hardness and long service life. Used for the L or cross right-angle connection of two aluminum profiles or lock connection of heavy frames. Insert the two ends of the L-shaped angle bracket into the groove of the profile and tighten the fixing screws to fix the two profiles. Suitable for 4545/5050 series aluminum profiles. Widely used for building industrial aluminum frame structures 3D printers CNC routers CNC laser cutters robotics projects woodworking machinery fish tank etc.