Charles Ellicott Commentary Exodus 26:5

"Fifty loops shalt thou make in the one curtain, and fifty loops shalt thou make in the edge of the curtain that is in the second coupling; the loops shall be opposite one to another." — Exodus 26:5 (ASV)

That the loops may take hold one of another. — Rather, correspond one to another. They were not to “take hold,” but to be attached by golden links.

Taches, or clasps. These might be split-rings, or links like modern sleeve-links.

And it shall be one tabernacle. — Rather, and (so) the tabernacle shall be one. The division of the curtain which formed the roof into two portions tended to make a division in the tabernacle itself. To prevent this, the two curtains were to be so looped together as to be practically one. Thus the tabernacle itself became one.