Abstract: A screen tensioning assembly for vibratory, particulate material-screening apparatus of the type including a frame having spaced, parallel, upstanding side panels connected by spaced, horizontal screen support members, and two, extended area apertured screens supported on the support members and extending substantially between the side panels for separating finer from coarser material. An up-turned hook portion is formed at one side of each of the screens. Each of the screens is tensioned by a clamping member having opposite ends with one end normally engaging the respective hook portion and the other end engaging the respective side panel. Each clamping member has a pivot member secured thereto adjacent its other end, extending through an aperture in the respective side panel, and having a portion engaging the respective side panel so that the clamping member may be pivoted upwardly from the respective screen to a stored position thereby to disengage the one end thereof from the respective hook portion.