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 standard 4080 series aluminum profiles with slot 8mm. Widely used for building industrial aluminum frame structures, 3D printers, CNC routers, CNC laser cutters, robotics projects, woodworking machinery, fish tank, etc.Specification:Color: SilverMaterial: Aluminum AlloyHole Quantity: 4Hole Size 1: 8mm/0.31"(Dia.)Hole Size 2: 25mmx8.5mm/0.98"x0.33"(L*W)Total Size: 77mm x 40mm x 77mm / 3.03" x1.57" x3.03" (L*W*H)Package Content: 4Sets in: 4 x4080 Aluminum Brackets16 x M8 Square Nuts16 x M8x20mm Hex Socket Screw Bolts16 x Flat Washers