with forty silver bases to put under the twenty frames—two bases for each frame, one under each tenon.
KJV
And forty sockets of silver he made under the twenty boards; two sockets under one board for his two tenons, and two sockets under another board for his two tenons.
ASV
and he made 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.