Exodus 36:11-13

Darby Translation

¹¹ And he made loops of blue on the edge of one curtain at the edge of the coupling; he did likewise in the edge of the outermost curtain in the other coupling.

¹² He made fifty loops in one curtain, and he made fifty loops at the end of the curtain that was in the other coupling: the loops were opposite to one another.

¹³ And he made fifty clasps of gold, and coupled the curtains together with the clasps, so that the tabernacle became one.