Exodus 36:18

18 They made fifty bronze clasps to fasten the tent together as a unit.

Read Exodus 36:18 Using Other Translations

And he made fifty taches of brass to couple the tent together, that it might be one.
And he made fifty clasps of bronze to couple the tent together that it might be a single whole.
He also made fifty bronze clasps to fasten the long curtains together. In this way, the tent covering was made of one continuous piece.