
Opening the active door + Manually unlatching the top bolt = inactive door is accessible; Closing the inactive and active door leaf in sequence = inactive door is secured.

Switching the lever/snib upward to unlock, downward to lock; You now have access control of the inactive door in your fingers.

The FB Series Flush Bolts - Automatic Flush Bolts. Simple. Self-Latching Flush Bolts. Sophisticate. Manual Flush Bolts. Controls.