I've never seen 4-40 thread standoffs (that is the size of the hold ... and the height being correct so that the ATX I/O plate and PCI slots line up properly. And yes, they should've come with ...

PEM® TSO4™self-clinching threaded standoffs from PennEngineering® offer reliable fastener solutions to securely stack or space components in ultra-thin stainless steel assemblies. These hardened ...

PEM® TSO4™self-clinching threaded standoffs from PennEngineering® offer reliable fastener solutions to securely stack or space components in ultra-thin stainless steel assemblies. These ...