וּמִשְׁקָ֛ל לְמִסְמְר֥וֹת לִשְׁקָלִ֖ים חֲמִשִּׁ֣ים זָהָ֑ב וְהָעֲלִיּ֖וֹת חִפָּ֥ה זָהָֽב׃
And the weight of the nails was fifty shekels of gold. And he overlaid the upper chambers with gold.
Rashi on II Chronicles
And the weight of the nails to reinforce with them the gold on the wooden walls.
Rashi on II Chronicles
in shekels in the weight of shekels, fifty shekels of gold.