The nails could not have gone though a person's hands. If they were put there the person would have been able to remove his hand from the cross. The nails would have to go though the wrist. This is one area where the bible is wrong.
Maybe maybe not. They weren't using what we would consider as nails, they used spikes and I'd like to see you consciously pull your hand through that.
Nevertheless, I thought the prevailing wisdom was that even if the nails held, the hand isn't strong enough to support the body (so I assume the nails would tear there way through the crucified person's hand) which is why the wrist is generally thought to be used although since they crucified a lot of people, we should have more info on this.
I looked in my KJ Bible.
Mathew doesn't say where the nails were.
Mark doesn't say where the nails were.
Luke doesn't say where the nails were.
John doesn't say where the nails were.
However, in John 27, Doubting Thomas put his hands in the holes in his hand and the wound in Jesus' side.
Even though I'm a Christian, one thing has always bothered me. In the first three Gospels, the writers refer to their names, in John's Gospel, he refers to himself as the Apostle Jesus loved most.