Hopefully I don't get flamed for this question. Will the lug nuts for 15" sawblades fit the 2002 17" wheel properly? Does anyone have a preference for lug nut brands?

 

I think it would, get wheel locks if you live in a bad neighborhood.

 

yes they will. The lug nut size on all nissans are 12x1.25

 

They'll fit but you might want to use spacers and longer studs on the back wheels.

 

OK. So I have one for they'll fit and one for maybe using spacers AND longer studs. Can I hear from others, especially those that are curently running the 17's as well?

 

You should be fine with no spacers and regular studs and lugs.
The only real use for the spacers in the rear is to bring the wheel out to look flush with the wheel well. Its not needed and is only done for cosmetic reasons.
Many are using 350z and G35 wheels and do not need psacers or longer studs.