Roller blind end bracket plate

An end bracket plate for a roller blind, the end bracket plate releasably securable to an end bracket of the roller blind and releasably securable to the end panel of a head box enclosure, said end bracket plate including one or more outwardly extending flanges, said one or more flanges receivable within one or more openings in the end panel of the head box enclosure such that when received within the openings in the end panel said one or more flanges hang said end bracket plate and the roller blind secured thereto within the head box enclosure, said one or more openings in the end panel of the head box enclosure comprising one or more generally horizontal slots that permit a generally horizontal adjustment of the position of said end bracket plate within the head box enclosure.