Exodus 36:13 in the World English Bible
He made fifty clasps of gold, and coupled the curtains to one another with the clasps: so the tabernacle was a unit.
Context
12 Fifty loops made he in one curtain, and fifty loops made he in the edge of the curtain which was in the coupling of the second: the loops held one curtain to another.
13 And he made fifty taches of gold, and coupled the curtains one unto another with the taches: so it became one tabernacle.
14 And he made curtains of goats’ hair for the tent over the tabernacle: eleven curtains he made them.