SM465 with M10x1.00 thread for shift knob?

[mattfranklin]

Original shift knob was aluminum and half jammed on when I bought the vehicle.

Shaft measured 0.374 and thread looked very fine so I bought a 3/8-24 nut to test fit. Did not fit.

So I bought a couple of metric nuts: one was labeled M10x1.25 and the other was labeled M10x1.00. The fine threaded one fit perfectly.

Now I cant find any shifter knobs with an M10x1.00 thread.

I'm now wondering of the hardware store bin was mislabeled or if I do really need the M10x1.00 and they are just hard to find.

Any ideas? I have a proper thread gauge somewhere and may need to dig it out.