What were the names of the two bronze pillars at the temple?

Answer: Jachin and Boaz

Huram set up the two bronze pillars at the temple portico and named them Jachin and Boaz.

“Thus he set up the pillars at the portico of the temple. The pillar to the south he named Jachin, and the pillar to the north he named Boaz.”— 1 Kings 7:21 (BSB)