MZ.412 (previously known as Maschinenzimmer 412) is an industrial project from Sweden, founded in 1988. They are the inventors of so-called "black industrial", a dark and haunting style which mixes industrial, noise, ritual ambient and black metal atmospheres.
The mastermind behind the project is Henrik Nordvargr Björkk (often credited as Kremator), aided by different people with each release.
Original releases from 1989-1990 came under the monicker Maschinenzimmer 412, previous to Björkk founding the Swedish EBM band Pouppée Fabrikk. The project came back in 1995 with the shortened moniker MZ.412 and the typical black metal look (painted faces, long hair, black leather), which was later abandoned.