'Peg' in the Bible

Then Jael Heber's wife took a tent peg, and took a hammer in her hand, and went softly to him, and struck the pin into his temples, and it pierced through into the ground; for he was in a deep sleep; so he swooned and died.

Behold, as Barak pursued Sisera, Jael came out to meet him, and said to him, "Come, and I will show you the man whom you seek." He came to her; and behold, Sisera lay dead, and the tent peg was in his temples.

She put her hand to the tent peg, and her right hand to the workmen's hammer. With the hammer she struck Sisera. She struck through his head. Yes, she pierced and struck through his temples.