| 摘要 |
<p>A threaded screw fastener has a point (5), a shank (4) and a head (2). The point is a ballistic point. The shank comprises a linear travel area (6), preferably unthreaded, adjacent to the point and a threaded area (13) between the linear travel area and the head. The head is a bugle head formed with a Phillips-style recess configured to receive a driver or driving bit. The fastener is configured fasten a surface material to a substrate material and to be linearly driven into the materials before rotation of the fastener is required, thus reducing the number of rotations required to drive the fastener. The fastener is particularly suited to be used with powered driving tools that utilize both linear and rotating driving means.</p> |
