| 摘要 |
A fastener for securing a 0.625 inch (⅝inch) 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 (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. |
