It's been a while, but I did this job and didn't need any special kind of
screws. For some reason, I saved the plastic brackets, which allowed the
drive to be removed with no tools, as I recall.
In any case, these procedures are probably well documentsd on the Compaq
site.
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**
 I have a recent Compaq and a HP desktop that I'd like to add additional
hard drives to. I opened them up and I see the hard drives have some kind of
big headed screws that attach to the side of the drives in the regular way
but they slide into channels and lock in place with a plastic bracket. If I
had some of those "big headed screws" it would be a snap but I can't seem to
find anywhere where I can buy any. Anybody know what they might be called or
where I could send for some?

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