would strongly advise everyone who uses any furniture for self bondage, i.e. beds, chairs etc., especially metal bed frames to periodically check all nuts & bolts to make sure that nothing is loose or could come undone. Fastenings can come loose especially if you struggle whilst tied to a bed or chair & you don't want something you're tied to collapsing. A few years ago the old fashion metal bed I was heavily strapped spread eagled to collapsed at the headboard causing me to become trapped for days.
Two nuts securing it had over time loosened & eventually during some hard struggling collapsed causing me to become stretched out to the max with my arms & legs & not being able to do much as the headboard had completely come away from the bed base causing it to fall backwards bringing the spring section, the mattress & myself still attached by all limbs down on top of it. I won't go into how I got free as it's here in an old post of mine. But it took days rather hours to get free. I was heavily gagged & in a very dangerous situation which could've been prevented if only I'd have thought to check the fittings. Since that day, nothing can come free as all the fittings have been treated with loctite thread locker, but I do still check every couple of months.[attachment=0]loctite.jpg[/attachment]