A fastener for securing a 0.625 inch ( inch) thick gypsum wallboard panel
to a wooden building frame. The fastener includes a body having a predetermined
axial length. The body includes a cupped head at one axial end of the body, having
a diameter that is at least in excess of 0.297 inches ({fraction (19/64)} inches),
a threaded portion at an opposite axial end of the body and an unthreaded shank
portion extending between the cupped head and the threaded portion, wherein the
shank portion has an axial length that is at least in excess of one-third of the
axial length of the fastener body, and a shank portion diameter that is at least
in excess of 0.098 inches.
