'Tent pin' in the Bible

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

And, behold, as Barak pursued Sisera, Jael came out to meet him, and said unto him, Come, and I will show thee the man whom thou seekest. And he came unto her; and, behold, Sisera lay dead, and the tent-pin was in his temples.

She put her hand to the tent-pin, And her right hand to the workmen's hammer; And with the hammer she smote Sisera, she smote through his head; Yea, she pierced and struck through his temples.