Playberg Swing Hanger in the Playset Hardware department at Lowes.com
Creative Cedar Designs Heavy-duty Swing Hanger in the Playset Hardware department at Lowes.com
Amazon.com: CONGO Set of 2 Commercial Swing Hangers Galvanized to Attach to Wooden Beams - Now Includes Bonus Hanging Snap Hooks (Carabiners) : Home & Kitchen