'Pin' in the Bible

Then Jael, Heber's wife, took a tent-pin and a hammer and went up to him quietly, driving the pin into his head, and it went through his head into the earth, for he was in a deep sleep from weariness; and so he came to his end.

Then Jael went out, and meeting Barak going after Sisera, said to him, Come, and I will let you see the man you are searching for. So he came into her tent and saw, and there was Sisera stretched out dead with the tent-pin in his head.

She put out her hand to the tent-pin, and her right hand to the workman's hammer; and she gave Sisera a blow, crushing his head, wounding and driving through his brow.

Then Delilah said to Samson, Up to now you have made sport of me with false words; now say truly, how may you be put in bands? And he said to her, If you get the seven twists of my hair worked into the cloth you are making and fixed with the pin, I will become feeble and will be like any other man.

So while he was sleeping she got the seven twists of his hair worked into her cloth and fixed with the pin, and said to him, The Philistines are on you, Samson. Then awaking from his sleep, he got up quickly, pulling up cloth and machine together.