Hi Jimmy,
Doing some catch up and saw this.
Here is what I have saved for the ZB's thread sizes
The thread on the fingers is 6-32.
The turn buckles are 6-40 (left & right threads)
The short rods are cut off bicycle spokes threaded to 6-40right.
The long pull rods are threaded to 6-40 left.
The tuning nuts are 10-24 or 10-32 cap screws, cut off & drilled and tapped to 6-32.
Confirming what the other boys have already said.

ZB Custom S10 3+4, DD3 Digi delay, ZB vol. pedal. Peavey Nashville 400