In which Grammy category did Metallica win for Metallica in 1992?

Metallica won Best Metal Performance at the 1992 Grammy Awards for Metallica.

The award recognized the album's impact during a pivotal moment in heavy music. Metallica had already built a major following through albums such as Master of Puppets and ...And Justice for All, but the 1991 record expanded that audience dramatically.

The album's production was more polished and its songwriting more concise than much of the band's earlier work. Songs including “Enter Sandman,” “Sad but True,” and “The Unforgiven” helped bring metal into mainstream radio and television without abandoning the band's heavy identity.

The Grammy category is sometimes confused with awards for hard rock or for individual songs. The relevant 1992 honor was Best Metal Performance, an award category specifically associated with metal recordings. Metallica later won additional Grammys, including awards connected with other albums and performances.