4x4 Pergola Brackets 3 Way Corner Extension Kit For Woodworking DIY Pergola Gazebo Hardware 90 Degree Angle Heavy Duty Steel With Black Powder Coat Fits Standard 4x4 Lumber 4 Pack

Heavy Duty 3-Way Pergola Brackets for 4x4 Posts
✔️ 2mm Q235B steel, black powder coat; fits 3.5x3.5 in posts

The 4-Way Corner Extension Kit is a heavy-duty bracket system designed to join 4x4 posts for DIY pergola, gazebo, and arbor projects. Made from 2mm thick Q235B steel with a black powder coat, it resists rust and harsh weather. This kit is ideal for homeowners and DIY enthusiasts building outdoor structures that need solid, stable joints.

✅ 2mm thick Q235B steel, high-strength welded frame
✅ Black outdoor powder coating, anti-corrosion and rust prevention
✅ Fits 4x4 lumber actual 3.5x3.5 in (89x89 mm)
✅ Inner opening 3.6x3.6 in (91x91 mm)
✅ 90-degree corner with triangular baffles for easy assembly
✅ Includes twist drill and 72 tapping screws for quick install
✅ Pack of 4 brackets for complete DIY pergola kits

💡 What is a pergola bracket used for in outdoor woodworking? This handy hardware helps create solid, right-angle joints for outdoor frames.
- Handy for joining 4x4 posts at 90 degrees
- Great for building pergolas, arbors, and gazebos
- Improves rigidity and load transfer in wooden structures
- Works with standard lumber sizes for easy DIY upgrades