[quote name='Graham' timestamp='1431770968' post='2774761']
First four Metallica albums for sure, the other big names in Thrash were Slayer, Anthrax, Testament and Exodus
[/quote]
Overkill, Annihilator (Alice In Hell is a pretty cool tune) and Acid Reign would want to say hello too!
If you're checking out Testament, Electric Crown and Practice What You Preach are good places to start!