If they're
the same as the HP-IB cables I have to go with my HP
9000/300 machines (and peripherals, such as 7958 disks), [...]
They almost
certainly are. [...]
All HP150s will have the metric (M3.5) jackposts. I
would be very
suprised if anything you have has the older 6-32 UNC ones,though. So
it should just plug straight in.
If the alternative is 6-32, I can check it; I have plenty of 6-32
stuff, nuts and screws both. (I probably have some M3.5 stuff, but not
really to know it.)
Mouse