The Rockwood 2962 Automatic Flush Bolt Set Top And Bottom, The 2962 Is Fully automatic opening active door retracts top & bottom bolts and is for Fire rated wood core & composite doors up to 1-1/2 hours fire rating, non-handed. Rockwood 2962 requires a low 3 lbs closing force is ADA compliant and has an override feature which prevents damage to doors or bolts if bolt heads are blocked from entering strikes. See Manuf Spec's
