Exodus 38:11

And for the north side there were hangings of a hundred cubits , their twenty pillars , their twenty bases were of bronze , but the hooks of the pillars and their fillets were of silver .

The north side was also a hundred cubits long and had twenty posts and twenty bronze bases, with silver hooks and bands on the posts.

And for the north side the hangings were an hundred cubits, their pillars were twenty, and their sockets of brass twenty; the hooks of the pillars and their fillets of silver.