Spanish to English Tech/Engineering Other awnings

This is just one phrase (not separate terms) on a page showing drawings of awning parts. The drawing is of a three-sided piece, sort of like a bracket [ but with longer short pieces (not sure how to describe it), to fit around a part of the awning. To me, it looks like a type of clamp that you might snap onto a long tube-like element.

All it says is those four words, no punctuation. Bandas carga cierre brazo

I hate it when they try to be so succinct that it loses all meaning.

Any ideas?

Thanks