'Fastenings' in the Bible

And a man drew a bow at a venture, and smote the king of Israel between the fastenings and the corslet. And he said to his charioteer, Turn thy hand, and drive me out of the camp; for I am wounded.

And a man drew a bow at a venture, and smote the king of Israel between the fastenings and the corslet. And he said to the charioteer, Turn thy hand and drive me out of the camp; for I am wounded.