4 Pcs Pergola Brackets, 45-Degree Angle Pergola Bracket, Gazebos Kit for 2"X4" Lumber (Actual Size: 1.6"X3.6") for Gazebos, Pergolas, Patio,Tree Houses. Quality Materials: The pergola brackets is made of high quality carbon steel with precision welding process, which is sturdy and durable.
eBay