Aha!
It is the thread on the screw, not in the block.
I took a closer look and noticed a hex socket in the opposite end of the thumb wheel.
So I undid it.
Looking inside there was a cross head screw top.
So I got my screwdriver and unscrewed it TIL it came right out.
The bolt part of the tuner is just a cheap bolt with a knurled knob on the end!
I’ll be off to the DIY shop tomorrow to see if I can find one.
I've just picked up an aliexpress doubleneck headless and one of the tuners in the "Overlord Of Bass" branded bridge unit has stripped its thread.
Any suggestions on repair, replace, or compatible parts?
I'm not sure what wood it is, but there's a Peter Cook Mighty Mite bass body which keeps appearing on some selling sites.
It originally had the neck too, but I guess they sold that.
There's the s/n.
The upper body edge.
And again...
It seems to give the impression of being a bit more substantial than a 4003, partly due to the quality and smoothness of that finish.
Due to the "zero-mod" holes (you can just see one above the treble pickup), I've been thinking about having it refinished; I might do something subtle, like have a two tone metallic which goes from that blue to black.
Music Man - an ugly, big heavy awkward lump, with a neck like a tree-trunk, a gonky looking round pickguard, and one tuner on the wrong side, just to make it difficult for you - pah!