Mike, I make those longest screws 5.5 inches. Din't know about the PSU bolts. Are you talking about the six that keep the whole PSU bolted down? If so I think half inch screws would do, they're not that critical, as long as they aren't too long so as to end-stop before getting tight. Hope this helps.
Cheers,
TOM
--- In yamahacs80@yahoogroups.com, "Mike" <mborish_2000@...> wrote:
>
> I'm having a hell of time figuring out thread count and dimensions on my CS-80. There are some small screws on the power supply that I lost that need replacing. Also, The biggest bolts that lock the face to the chassis were missing. Does anybody know what the dimensions are for them? A complete list would be awesome!
>
> -Mike
>