Exodus 26:19, 21, 25, 32

You shall make forty silver sockets under the twenty boards, two sockets under each board for its two dovetails, and two sockets under another board for its two dovetails

and their forty silver sockets, two sockets under each board.

There shall be eight boards and sixteen silver sockets; two sockets under each board.

You shall hang it on four pillars (support poles) of acacia wood overlaid with gold, with gold hooks, on four silver sockets.