This is a question with answer options. Goal: How do you lock rods into a baseplate?

Which of the following methods is more reasonable for accomplishing this goal?

Choices:
a). Put some metal epoxy on the threads of the rod once it is in position. Leave it to dry overnight.;
b). Once the rod is in the desired position use a blow torch to heat the rod enough to lock in place.;...I think the answer is
a).