Charles Ellicott Commentary Exodus 38:27

"And the hundred talents of silver were for casting the sockets of the sanctuary, and the sockets of the veil; a hundred sockets for the hundred talents, a talent for a socket." — Exodus 38:27 (ASV)

The sockets of the sanctuary. — On these, see Exodus 26:19; Exodus 26:21; Exodus 26:25. They consisted of forty for each side and sixteen for the western end—total, ninety-six.

The sockets of the veil. — On these, see Exodus 26:32. They were four in number, and supported the four pillars on which the veil was hung. Thus, the total number of the silver sockets was, as the text expresses, one hundred.