Simpson Strong-Tie Heavy Duty Angle 90mm Black SKU: 329107 MODEL: APA4 Error. try again later You've successfully joined the club $ 5 .98 each Available on orders $50 to $1500.More info × Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants A heavy duty angle designed to add structural strength to pergola construction, in black decorative finish. Features and benefits Designed to suit minimum 90mm timber. Galvanised and powder coated in black for durability and looks. Designed to work with additional matching hex head washers and structural screws.