Exodus 26:19
You shall make forty sockets of silver under the twenty boards; two sockets under one board for its two tenons, and two sockets under another board for its two tenons.
World English Bible (Public Domain)
In context
Before · Exodus 26:17–18
17There shall be two tenons in each board, joined to one another: thus you shall make for all the boards of the tabernacle. 18You shall make twenty boards for the tabernacle, for the south side southward.
19You shall make forty sockets of silver under the twenty boards; two sockets under one board for its two tenons, and two sockets under another board for its two tenons.