In article ,
says...

I was in HD yesterday looking for #8 wood screws in 2.5" or 3" lengths. They
did not carry those lengths in anything other than the "2 packs" ($1.18 ea)
so the clerk suggested these:

http://www.homedepot.com/p/SPAX-8-x-...0606/202041007

I should note that the website shows "Full Thread" for those screws, but in
the 2.5" length, the actual product on the shelf has about 1/2" of
unthreaded shaft. (Same SKU, different screw)

They are slightly more expensive than the same size package of standard
wood screws would have been, but way cheaper than buying a boatload of the
2 packs at $1.18 each.

BTW I'm not asking for a source for #8 2.5" wood screws, I'm just curious
about how the multi-material construction screws would work in place of
wood screws. I would never trust the "no need to predrill" claim for
anything that I cared about, but other than that, would there be a problem
using these screws in wood?

SPAX work fine. Be careful using them for anything whose failure might
result in injury though--I've occasionally (maybe one out of 50) busted
them while tightening them (with an impact driver--haven't ever busted
one tightening by hand)--I suspect that they were overhardened but the
last ones I bought were a decade or so back and I'm still using them up
so don't know from personal experience if that has been rectified.