2-Piece Outdoor Swing Spring Assembly

Complete mounting solution: 2 coil springs + 2 threaded J-hooks. Spring specs: 15 cm uncompressed, 4.5 mm wire, 32 mm outer diameter, zinc-plated carbon steel. Verified working load: 150 kg per spring. Hooks: M12 thread, 30 mm throat width, drop-forged steel. Intended for permanent installation in dry-to-damp outdoor zones — e.g., covered patios, enclosed balconies, timber porches — where UV exposure is limited and airflow prevents condensation buildup. These springs serve as kinetic buffers — converting sharp jerks into smooth compression, reducing perceived inertia, and enhancing user comfort during rocking or swinging. Particularly beneficial for therapeutic seating, gentle exercise, and elderly or mobility-conscious users seeking low-impact movement. Validated with UK-market products including hanging yoga chairs, adjustable porch swings, heavy-duty plant hangers, and compact home gym rigs — all relying on overhead suspension with minimal footprint and maximum reliability.