The Rockwood 2942 Automatic flush bolt Top And Bottom Set:

is for wood doors And Is non-handed. Rockwood Commercial Automatic Flush Bolts 2942 requires a low closing force and has an override feature that prevents damage to doors or bolts if bolt heads are blocked from entering strikes. The Rockwood 2942 has a Thermal lock that automatically locks the inactive door under high heat conditions due to fire. See Manuf Spec's For Additional Info