Some of the usual suspects from me:
Hexenhaus - A Tribute to Insanity
Détente - Recognize No Authority
Sacrilege - Within the Prophecy
Anacrusis - Suffering Hour
Voivod - Killing Technology
Znowhite - Act of God
Testament - The Legacy
If I also included albums which are only partly thrash metal, Fear of God's "Within the Veil" would definitely belong in this list, too, though this an album which requires a category of its own.
And at least for nostalgic reasons, I should mention Metallica's "Ride the Lightning", since it was some kind of musical revelation way back in 1984, the album which really got me into metal (mostly thrash metal, at least in the eighties) and I still listen to it every once in a while nowadays.
Since Anthrax have been mentioned before: While I listened to their albums until "State of Euphoria" way back then, they were never among my overall favourites. I think I found them especially lacking in the guitar solo department (compared to bands like Metallica, Megadeth, Testament or Forbidden). When I saw them live on their "Among the Living"-tour in autumn 1987, I still enjoyed the concert, but supporting act Testament who had just released their debut a few months before (which also was my favourite album in 1987) were much more impressive. They sounded much rawer and had an Alex Skolnick on lead guitar. Also, while I still listen to Testament's "The Legacy", I don't think I'll ever revisit any of Anthrax' stuff.
Anacrusis - Screams And Whispers
I don't hear much thrash metal on that album. I like it, but I'd rather call it progressive metal.
