Lug nut, and wheels stud question.

[DragRag]

I picked up a set of 04' alloy wheels for my 88 k30 Single rear truck. They bolted up just fine using my stock lug nuts. Of course the center caps need the 04' lug nuts to work, well I didn't get those. My questions is, are the threads on my 88', and the threads on the studs on the 04' the same thread? If so I would like to find late model lug nuts so I can put the center caps on. Let me know if the newer lugs will work on my 88', thanks.