"Nails for Crucifixion"
Josephus describes two crucifixions where he specifically says that they were nailed to the cross.
He records how Florus, the procurator of Judea from AD 64–66, crucified Romans of equestrian order: he “whipped, and nailed them to the cross before his tribunal.” Likewise, in his description of Titus’s siege of Jerusalem, he describes the soldiers capturing Jews who were trying to escape the siege: “So the soldiers out of the wrath and hatred they bore the Jews, nailed those they caught. . . to the crosses.”