'Sockets' in the Bible

Now the appointed duties of the sons of Merari involved the frames of the tabernacle, its bars, its pillars, its sockets, all its equipment, and the service concerning them,

and the pillars around the court with their sockets and their pegs and their cords.

Now this is the duty of their loads, for all their service in the tent of meeting: the boards of the tabernacle and its bars and its pillars and its sockets,

and the pillars around the court and their sockets and their pegs and their cords, with all their equipment and with all their service; and you shall assign each man by name the items he is to carry.