a removable wall construction system and fastener for same . wall panels are mounted to aperture vertical studs via one - piece fasteners . the fasteners comprise a piercing means for attaching the fasteners to the edges of the wall panels , and aperture penetrators for attaching the fasteners to the studs . the aperture penetrators comprise transversely deflectable side arms or projections removably insertable into the stud apertures . these deflectable side arms are provided with inwardly bent distal end portions for improved retention in place following insertion .