Mechanical security locks 309N / 319N double-leaf. The mechanical, self-locking panic lock for double-leaf doors Mechanical high security lock 309NB7 double-leaf View Mechanical high security lock 309NE7 double-leaf View Mechanical high security multi-point lock 319NE7 double-leaf View Mechanical high security multi-point lock 319NB7 double-leaf View Security top lock N5120 View Passive leaf lock N1940 View