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.