for interior doors in residential, administrative and commercial buildings in public and industrial buildings, school buildings, etc., lightweight mortise lock for interior doors in timber areas, visible parts blue galvanized, round forend, Delrin latch with slam latch, cannot be changed over, bolt 1-turn 11 mm, without striking plate cut-out for warded keys (BB), key clipped onto the forend, key numbers 1-5 for right-hand DIN version, key numbers 6-10 for left-hand DIN version