Exodus 26:9-11

King James Version

⁹ And thou shalt couple five curtains by themselves, and six curtains by themselves, and shalt double the sixth curtain in the forefront of the tabernacle.

¹⁰ And thou shalt make fifty loops on the edge of the one curtain that is outmost in the coupling, and fifty loops in the edge of the curtain which coupleth the second.

¹¹ And thou shalt make fifty taches of brass, and put the taches into the loops, and couple the tent together, that it may be one.