ROCKWOOD 2845 Combination Flush BoltsSetMaterial: Brass, stainless steel;Finishes: US3, US4, US10, US10B,US10BE, US26, US26D, US32D;Fastner: Top: 8 ea. #8 x 3/4″ FH combo screws. NOTE: No plastic anchor required for top only. Bottom (No. 2845 only) 18 ea. #8 x 3/4″ FH combo screws, 2 ea. #6 – 8 plastic anchors.Features: For Fire Rated Metal Doors labeled A, B, C, D & E up to 4’w x 8’h Top BoltAutomatically engages when the inactive door closes. When the active door is opened, the inactive door stays latched at the top until the top bolt is released by pressing the plunger button on the bolt face Bottom Bolt (No. 2845 only)Non-handedFully automatic opening active door retracts bottom boltOverride feature prevents damage to door or bolt if bolt head is blocked from entering strikeBolt head rod is adjustable up to 3/4″Thermal lock automatically locks the inactive door under high heat conditions due to fireOptions: No. 2845 can be used with the No. 570 Dust Proof Strike (shown on page E4).ROCKWOOD 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