1969 Barracuda fastback parking brake cables
They packaged a "5/16-18 3 hit top lock flange automation" nut for the hardened adjustment rod which
is way too high in prevailing torque.
When asked about their spec, they replied that they don't have one.
If you do get this set with that nut, test the nut on the threads
BEFORE you install that front cable. There are alternative lock nuts out there.