Exodus 36:31 (KJV)

And their forty sockets of silver; two sockets under one board, and two sockets under another board.

And for the sides of the tabernacle westward he made six boards.

And two boards made he for the corners of the tabernacle in the two sides.

And they were coupled beneath, and coupled together at the head thereof, to one ring: thus he did to both of them in both the corners.

And there were eight boards; and their sockets were sixteen sockets of silver, under every board two sockets.

And five bars for the boards of the other side of the tabernacle, and five bars for the boards of the tabernacle for the sides westward.

And he made the middle bar to shoot through the boards from the one end to the other.

And he overlaid the boards with gold, and made their rings of gold to be places for the bars, and overlaid the bars with gold.

And he made a vail of blue, and purple, and scarlet, and fine twined linen: with cherubims made he it of cunning work.

And he made thereunto four pillars of shittim wood, and overlaid them with gold: their hooks were of gold; and he cast for them four sockets of silver.