'Peg' in the Bible

But Ja'el the wife of Heber took a tent peg, and took a hammer in her hand, and went softly to him and drove the peg into his temple, till it went down into the ground, as he was lying fast asleep from weariness. So he died.

And behold, as Barak pursued Sis'era, Ja'el went out to meet him, and said to him, "Come, and I will show you the man whom you are seeking." So he went in to her tent; and there lay Sis'era dead, with the tent peg in his temple.

She put her hand to the tent peg and her right hand to the workmen's mallet; she struck Sis'era a blow, she crushed his head, she shattered and pierced his temple.