Abstract: An integrated joint assembly fastener is described for removably securing two adjoining members together along flat mating surfaces. A housing is provided with an off-center circular bore in which a rotatable element is held captive. The bottom end of the rotatable element has an offset connecting post which extends perpendicular to a slit provided in a rear sidewall of the housing. Stationary wedges on the housing front project from opposite side of the slit. A pair of connecting dowel head sections project from the front opening and are engaged by the offset connecting post of the rotatable element. The dowel head sections have a gripping ridge section at a free end and an inclined abutment formation for sliding engagement against the wedges. By rotating the rotatable element, the gripping ridge sections of the dowel head are pulled back and wedged outwardly, laterally.