Plate said workers now would begin the task of lining up nuts and bolts on the spire.
“They have bolts that have all been aligned, pre-assembled,” he said.
“They know exactly where the bolts fit . . . and then there’s a very sophisticated torquing mechanism that goes on to make sure there’s exactly the right amount of tightness on the bolts to give it its proper structural strength.”
Plate said Thursday was “a very special day,” but that the Port Authority planned several more public celebrations before the first tenant, Condé Nast, begins moving in next year.