The words Inferior Five, Metal Men, and Tornado Twins appear in the background in the Batman: The Brave and the Bold episode Mayhem of the Music Meister when the titular villain has Batman and Black Canary in a death trap.
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) and Malcolm Wheeler-Nicholson's National Allied Publications which became Harry Donenfeld's Detective Comics (Batman, Superman, et al.) - as well as Silver and Bronze Age comic book series such as Legion of Super-Heroes, Challengers of the Unknown, Doom Patrol, Metal Men, Aquaman, Justice League of America, et al.
When Booster Gold visited, asking for help with Skeets, Magnus commented that the Metal Men "don't quite work anymore."
Skeets managed to stop the mind control enabling the Metal Men to help Batman fight the giant composite Starro monster.