The BSK-60mm is a 60mm brass euro-profile mortice cylinder, the key-operated locking core fitted into a mortice door lock. It has a polished gold-tone brass finish, a black centre cam that turns to work the lock bolt, and a fixing-screw hole in the lower body. The front face carries a round keyway plug. It belongs to a brass range of cylinders sized 60mm to 100mm. Catalogue code: 37521 Part numbers: BSK-60mm