ROCKWOOD 2940 Top Bolt Only Automatic Flush BoltMaterial: Brass, stainless steel;Finishes: US26D, US32D;Size: 1" x 8-1/2"Fastner: 6 ea. #8 x 3/4" FH combo screws, 2 ea. #8-32 x 1/2" FH MS, 3 ea. #10 x 1" FH WSFeatures: For wood doorsFully automaticopening active door retracts top and bottom boltsOverride feature prevents damage to doors or bolts if bolt heads are blocked from entering strikesBolt head rods are adjustable up to 1/2"Thermal lock automatically locks the inactive door under high heat conditions due to fireUL listedROCKWOOD OVERVIEWRockwood products are normally used on all types of institutional buildings, offices, retail, educational, detention, sports facilities, hotel and restaurant, and finer residences.ENVIRONMENTAL MANAGEMENTASSA ABLOY is commited to protecting the quality of the environment as well as the health and safety of its employees, customers, and the community. Please see ourEnvironmental Health and Safety Policyfor details on how we are dedicated to this commitment.RESOURCES & DOWNLOADSRockwood full line catalog