The Rockwood 2840.26D automatic, non-handed flush bolt has a brass satin chrome plated finish (Rockwood/BHSM number US26D/626), meets American National Standards Institute (ANSI) A156.3: Type 25 specifications, and is used to secure a pair of metal doors at the top. The flush bolt is installed in the door so that the latch lies flush with the doors surface. Opening the active door automatically retracts the bolt. The thermal lock automatically locks the inactive door under high heat conditions due to fire. It measures 6-3/4" high x 1" wide, and the bolt head rod is adjustable up to 1-1/2". Base material is brass.
Rockwood Manufacturing Company manufactures door hardware. The company, founded in 1946, is headquartered in Rockwood, PA.