Lock case EL163 Mechanical lock with night- and day functions. The lock can be opened from outside by a key and inside by a handle. The lock deadlocks automatically when the door closes. Snib can be set for secure and daytime positions. Daytime snib position enables handle usage. Secure snib position keeps outside handle freewheeling. Specifications Mortise standard Europrofile Locking Points Single point Installation type Mortise Cylinder body type Close Lock case EL165Multipoint lock case for solid doors Lock case EL160Mechanical lock solid doors Lock case 4232Security DIN lock case.