Wide Use: 90 Degree L Right Angle Brackets are used for: shelf installation, pergola reinforcement, panel connection, furniture repair, shelf installation and other scenarios, providing solid 90 degree support for a variety of structures. At Bjorn Woodworks, we take this product to the next level, offering premium quality thick steel and welds in three sizes: 4"x4",6"x4", and 6"x6" rough cut Wide Use: 90 Degree L Right Angle Brackets are used for: shelf installation, pergola reinforcement, panel connection, furniture repair, shelf installation and other scenarios, providing solid 90 degree support for a variety of structures - For 4x4 Posts and Beams - - For 4x4 Posts and Beams - - For 4x4 Posts and Beams - - This listing is for a set of four (4) Outside Corner Brackets made to fit dimensional 4x4 (3.5"x3.5") posts and beams, which have a SLOPE OF 6:1-- for those of you who Package Includes: 4 pcs L bracket, 32 pcs screws,1 pcs batch head. Simply select the location and fasten it with screws. Steel L Brackets Heavy Duty Heavy Duty Black Decorative Pergola Corner Bracket Steel Corner Bracket Pergola Brackets 4x4 3-Way 4pcs Right Angle Corner... Heavy Duty Corner Brackes: Made of high quality carbon steel, precision welded, black powder coated surface, with excellent anti-corrosion and anti-rust performance, suitable for indoor and outdoor use. Please feel free to contact us if you have any questions about installation and so on. Product Features: L bracket in the middle of the special increase in load-bearing support, the formation of a stable triangular one-piece structure, long-term use of the process can effectively prevent deformation.