80s Metalheads...sleeper picks

This may be a little offbeat, but back in the day, I listened to Bad Brains, they were Rasta metal dudes who were pretty legendary. Their 'big' album was entitled 'i against i' and one of the tracks, 'Sacred Love,' has a very muted, odd sounding lead vocal. Apparently, the singer was in jail on a ganga charge, and they recorded his vocal track over the phone, from jail.
They don't fit neatly into any category- maybe punkish, but they ain't reggae, that's for sure.

Metal Church, The Dark. Y&T had some decent tunes as well.

Pentagram

I use to have Diamondhead on vinyl. Big influence on Metallica.

Budgie. From Wales. One of the original HM bands. Very underrated. Covered by Metallica, Soundgarden, and others. Check 'em out.