Rightly or wrongly when I undo something, anything with a thread it gets a thorough clean and a touch of grease before doing it back up.Makes thing much much easier the next time you may have to dismantle it.
I worked in mechanical / electrical engineering before I retired. Everything we worked on had bearings and various fixings and fastenings.
We'd often get kit that had been previously repaired elsewhere and I'd say a silent thank you to the unknown fitter who'd put put grease where it was needed, and loctite where that was needed.
Makes thing much much easier the next time you may have to dismantle it.
