For these, you shall cast forty bases of silver, so that two bases will lie under each panel at its two corners
Other versions
King James Version
And thou shalt make forty sockets of silver under the twenty boards; two sockets under one board for his two tenons, and two sockets under another board for his two tenons. English Standard Version
and forty bases of silver you shall make under the twenty frames, two bases under one frame for its two tenons, and two bases under the next frame for its two tenons;New International Version
and make forty silver bases to go under them-two bases for each frame, one under each projection.