Yes, in the US "Hair Bands"/"Hair Metal"/'Glam Rock" are all names for this genre of music. For me it was Van Halen, Def Leppard, Bon Jovi, Poison, Cinderella, Whitesnake, Guns N Roses, Slaughter, etc.
I don't think Metallica would associate themselves with Hair Bands. People would say they were just Metal.