With 2 x 60x8mm Thunderbolts to secure the bracket to a flat wall fixings. The main photo, taken in my garden, is of our extra sturdy 75 x 75mm 3mm thick bracket with 2 thunderbolts and 1 screw. 75mm wide x 75mm deep ( 3" x 3" ) in Extra Strong and thick 3mm galvanised steel.
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