Exodus 26:17-19

Young's Literal Translation

¹⁷ two handles [are] to the one board, joined one unto another; so thou dost make for all the boards of the tabernacle;

¹⁸ and thou hast made the boards of the tabernacle: twenty boards for the south side southward;

¹⁹ and forty sockets of silver thou dost make under the twenty boards, two sockets under the one board for its two handles, and two sockets under the other board for its two handles.