Which song title on Metallica's 1991 album matches the Gadsden flag's motto?

“Don't Tread on Me” is the Metallica song title that matches the Gadsden flag's motto.

The Gadsden flag is associated with a coiled rattlesnake and the words “Don't Tread on Me.” Metallica's album cover uses a snake derived from that flag, and the same motto appears as one of the album's song titles.

This connection explains why the cover and track list are often discussed together. The album's logo and snake were initially embossed so subtly against the black background that they were difficult to see, which helped produce the nickname The Black Album.

“Don't Tread on Me” was issued to rock radio after the album's release but was not released as a commercial single. That detail distinguishes it from the five official commercial singles: “Enter Sandman,” “The Unforgiven,” “Nothing Else Matters,” “Wherever I May Roam,” and “Sad but True.”