Problem: Engine not cranking when tuning key

Tests so far: 12.36 volts at battery and at 2 screws on right fender well. When jumping two screws(which closest to battery being one and the second screw) nothing happens. I also have 12.36 volts at larger wire on solenoid. But, no volts at smaller wire on solenoid either while key is off or while trying to turn ignition key.

Other: Cleaned both battery terminals and cables. Cleaned ground strap that attaches to transmission bell housing as well as the ground strap that attaches to the right fender well.

Question: Does this necessarily narrow problem to solenoid? Or is it still possible for it to be the NSS or possibly ignition switch? And is it necessary to remove small wire that attaches to solenoid to see if any voltage present at the wire itself while trying to turn the ignition switch?

Any help or ideas of possible solutions are really appreciated.

Thanks
Charlie