About these itemsHeavy-Duty Carbon Steel Construction: Built from 2mm carbon steel plates with black powder coating, these pergola brackets are designed for maximum durability, corrosion resistance, and protection from rainwater erosion. The reinforced 90° boot structure prevents breakage or deformation.Multiple Size and Structure Options: Available in 4" x 4" and 6" x 6" sizes, with both three-way and four-way configurations, the pergola brackets accommodate mainstream wood beam specifications, ensuring compatibility with various hardwood or softwood types.Sunshade Canopy Integration: The built-in sunshade sail hanging holes allow for easy installation of canvas covers to protect the pergola interior from direct sunlight and rain, enhancing outdoor comfort while keeping the space clean and dry.Secure and Stable Fixation: Upgraded stainless steel expansion screws provide long-lasting strength, anchoring the brackets to different surfaces like wood or concrete without deformation. The included long steel nails (up to 60mm) enhance stability for long-term use.Complete Installation Kit: The package includes steel corner brackets, base plates, stainless steel expansion screws, and drill-tail screws. The simple assembly process allows both professionals and DIY enthusiasts to easily build a stable outdoor structure.Key DifferencesSize Options: Available in 4" x 4" and 6" x 6" to fit common wood beam dimensions.Structure Configurations: Choose between three-way or four-way configurations based on project needs.Weight Variance: Heavier models for larger structures range up to 50.57 lbs, offering additional stability.Sunshade Compatibility: All models include sunshade sail hanging holes for added versatility.SpecificationsMaterial: 2mm Carbon Steel with Black Powder CoatingSizes: 4" x 4" or 6" x 6" optionsStructure Types: Three-Way or Four-WayProduct Dimensions: Vary by model (ranging between 8.66" x 8.66" to 15.35" x 10.63")Weight: Ranges between 12.63 lbs to 50.57 lbs depending on size and configurationDrainage Holes: Built-in to prevent water accumulation and prolong lifespanPackage ContentsCorner Brackets (Three-Way or Four-Way)Base Plates (For applicable models)Drill-Tail Screws (M4.8 x 50mm)Stainless Steel Expansion Nails (M8 x 60mm)Instruction Manual