Nail

Boyd’s Bible Dictionary:

(hold, claw). Nails of captives to be pared (Deut. 21:12¹²Then thou shalt bring her home to thine house; and she shall shave her head, and pare her nails; (Deuteronomy 21:12)). Ordinary metal nail (1 Chron. 22:3³And David prepared iron in abundance for the nails for the doors of the gates, and for the joinings; and brass in abundance without weight; (1 Chronicles 22:3)); stylus (Jer. 17:1¹The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven upon the table of their heart, and upon the horns of your altars; (Jeremiah 17:1)); stake (Isa. 33:20²⁰Look upon Zion, the city of our solemnities: thine eyes shall see Jerusalem a quiet habitation, a tabernacle that shall not be taken down; not one of the stakes thereof shall ever be removed, neither shall any of the cords thereof be broken. (Isaiah 33:20)); tent-peg wood or metal (Ex. 27:19¹⁹All the vessels of the tabernacle in all the service thereof, and all the pins thereof, and all the pins of the court, shall be of brass. (Exodus 27:19); Judg. 4:21-22²¹Then Jael Heber's wife took a nail of the tent, and took an hammer in her hand, and went softly unto him, and smote the nail into his temples, and fastened it into the ground: for he was fast asleep and weary. So he died. ²²And, 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 when he came into her tent, behold, Sisera lay dead, and the nail was in his temples. (Judges 4:21‑22)).