Diddly Squat were a mid 80s hardcore band from Tri Cities, WA. Over their brief tenure, they released two demos and a 7". They could draw comparisons to the likes of Crucifucks, Subhumans (Canada), The Freeze and other contemporaries of their day, but there's also a major crossover vibe happening with the guitar work.
Diddly Squat most famously featured a young Nate Mendel prior to joining the likes of Brotherhood, Galleons Lap, Christ On A Crutch, Sunny Day Real Estate and Foo Fighters throughout his time with the bass. Drummer, Eric Akre, also went onto spend time in Galleons Lap, Christ On A Crutch and Treepeople.
Unfortunately, in 1988, guitar player Jason Cobb drowned in the Columbia River, which brought an abrupt end to the band just a day before what would have been their final show.
Here is their full No Questions demo from 1987. Four of these songs were also released as the self titled 7" on Kil-Tel Records, but this demo has nine tracks total.
Diddly Squat - No Questions
I was also able to track down their 1986 demo via Soulseek
Diddly Squat - Peroxide In The Scablands