Black Flag font here refers to the font used in the logo of Black Flag, which was an American punk rock band formed in 1976 in California. The band are generally considered to be one of th first hardcore punk bands.
The band logo, designed by Raymond Pettibon, who also suggested the band name, features a stylized black flag consisting of four black bars with the band name above and beneath it. The font used for the band name lettering is very similar to a font called Friz Quadrata Bold designed by Ernst Friz. The font is a commercial font and you can purchase and download the font here.
Download Friz Quadrata Font
The Friz Quadrata font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.