A read/write assembly for magnetic hard disks includes at least: one supporting element; one read/write (R/W) transducer; one micro-actuator, set between the R/W transducer and the supporting element; one electrical-connection structure for connection to a remote device carried by the supporting element and connected to the R/W transducer and to the micro-actuator. In addition, a protective structure, set so as to cover the micro-actuator is made of a single piece with the electrical-connection structure.