Or you could buy THESE
They are OK to be honest, I have a set of those in a pair of headlights with no complaints. The aluminium ones need some tape on them otherwise the reflectors have a slight play in them when you go over a bump, but definitely the best solution, the resin ones need a lot of work and I struggled to adjust the headlights to the right level for an MOT, I gave in in the end hence the use of the ones in the link.
I haven't used the ones in that link, but if faced with another Omega would buy them to reduce the time in fixing a lamp.
I have fitted several aluminium and resin ones. The metal parts benefitted from a few seconds with a file to deburr the edges and a tap run through to clean up the threads, although neither was necessary. The resin ones
needed the tap and some finishing to make them fit. I did see one where the inserted ball was loose. Both fixed the problem permanently at an acceptable cost and time spent.
I would suggest cleaning and lubricating the geared adjusters while the lamp is apart.