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 4040/4080 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.Specification:Color: Silver Material: Aluminum AlloyHole Quantity: 4Hole Size 1: 8mm/0.31"(Dia.); Hole Size 2: 25x8.5mm/0.98"x0.33"(L*W)Total Size: 77mm x40mm x77mm / 3.03" x1.57" x3.03" (L*W*H) Package Content:8 x 4040/4080 Aluminum Brackets