Fig 4.0 (pronounced "Figure Four") were a hardcore punk band from Leeds and Harrogate, England, formed in 1999 from the remnants of skacore act "Tinker's Rucksack". 2001 saw the release of the album Action Image Exchange which presented a series of short, sharp hardcore punk songs, characterising the band's sound. After several years as popular stars of the DIY/underground punk rock scene and growing underground success in the United States, the band split in 2004.
Alderdice and Hastewell of are currently active in the band The Dauntless Elite. Coy is currently playing in the band himself.