Steelpunk is a subgenre of punk that focuses on the technologies that had their heyday in the late 20th century. In a post describing Steelpunk on the SFFWorld website it is characterised as being “about hardware, not software, the real world not the virtual world, megatechology not nanotechnology. The artefacts of Steelpunk aren’t grown, printed or programmed, they’re built. With rivets.”
Examples given in the post include Mad Max, Terminator, Barb Wire, Iron Man and Snowpiercer. Other writers suggest Harry Harrison’s Stainless Steel Rat series, the Heinlein juveniles and the film Sky Captain and the World of Tomorrow.