Jowie

I managed to break off one of the screws in mine last night, so trying the alum trick now. Also found a 0-80 tap locally, so hope not to repeat this on any of the other screws.

can you drill out the broken half of the screw from threading, then re-tap?[/QUOTE] I would need about 1.2 mm drill to be able to use a M1.6 tap after, I only have a Dremel pillar drill and the because the screw is a lot harder than the body and 1.6 mm drill bend easily I don't think I could do it. And there is not enough screw showing to grip.[/QUOTE] Maybe you can dissolve the broken screw out: https://youtu.be/fqZYgReuywM Warning, crude language...