The metal titans donated to Dublin's Capuchin day centre which helps provide for homeless people and the ISPCC for children.
The metal titans say they were “overwhelmed” following their second Day Of Service which saw over 3,000 fans volunteer at their local food banks across the US.
The seventh annual Metallica night with baseball’s San Francisco Giants will take place on 26 April.
The metal titans’ rare acoustic performance of their classic anthem was captured in San Francisco in November last year.
This rare version of the band’s legendary 1983 track features on the new album ‘Helping Hands… Live & Acoustic At The Masonic’.
The initiative, through the band’s All Within My Hands Foundation, will see 10 colleges receive $100,000 each.
The album documents the inaugural Helping Hands Benefit Concert held in San Francisco on 3 November.
In co-operation with Feeding America, Metallica made contributions to its local partners in each city the band performed in during the 2017 stadium tour.