Swing bracket with carabiner (swing hook), fixed circular bracket (3-3.5 mm sheet metal) for secure suspension of swings and hammocks, for example. Load capacity 150 kg. Available in 4 sizes in the 50 mm - 100 mm range. Galvanized white zinc surface. Available in two variants - for round timber and square timber 1285A, see:
link to product 1285A.