| Subject | English | Spanish |
| IT, dat.proc. | access key and lock | clave de acceso y cierre |
| comp., MS | CAPS LOCK key | tecla Bloq Mayús (A toggle key that, when on, shifts the alphabetic characters on the keyboard to uppercase) |
| comp. | correct accidental usage of CAPS LOCK key | corregir el uso accidental de la tecla Bloq. Mayús. (letras mayúsculas) |
| auto. | door lock key cylinder | cilindro de la llave del seguro de la puerta |
| gen. | If you lubricate the lock, maybe we can get to turn the key | Si lubricamos la cerradura, quizá consigamos que gire la llave |
| transp., mech.eng. | key for point lock | llave de cerradura |
| comp., MS | Key lock | Bloqueo del teclado (An option that locks the keypad to avoid accidental key presses) |
| mun.plan. | key lock | cerradura de llave |
| railw., sec.sys. | key lock | cerrojo de llave |
| tech. | key lock switch | interruptor de encendido |
| tech. | key lock switch | interruptor de arranque |
| transp. | key locking system | sistema de bloqueo con llave |
| comp., MS | key range lock | bloqueo de rangos con clave (A lock that is used to lock ranges between records in a table to prevent phantom additions to, or deletions from, a set of records. Ensures serializable transactions) |
| IT, dat.proc. | key-lock | clave de acceso y cierre |
| construct. | key-operated locking hasp | aldaba de seguridad con llave |
| gen. | lock and key management | gestión de las cerraduras y llaves de seguridad |
| IT | lock-and-key protection system | sistema de seguridad mediante cierre y clave |
| IT, dat.proc. | number lock key | tecla de bloqueo numérico |
| IT, dat.proc. | NUM-LOCK key | tecla de bloqueo numérico |
| comp., MS | SCROLL LOCK key | tecla BLOQ DESPL (On the IBM PC/XT and AT and compatible keyboards, a key on the top row of the numeric keypad that controls the effect of the cursor control keys and sometimes prevents the screen from scrolling. On the enhanced and Macintosh keyboards, this key is to the right of the function keys on the top row. Many modern applications ignore the Scroll Lock setting) |
| IT, dat.proc. | scroll-lock key | tecla bloque desplazamiento |
| gen. | We force the lock and the key is stuck | Forzamos la cerradura y se atoró la llave |
| gen. | You need to insert the key into the lock | Necesitas introducir la llave en la cerradura |