| 摘要 |
A screw with a pointed end includes a head, a shank, and a conical end portion formed in a lower portion of the shank. The conical end portion has a drill thread and an incomplete securing thread. The drill thread extends upward from a pointed end of the conical end portion to an upper end of the conical end portion. The incomplete securing thread has its lower end connected to the drill thread so that cut waste may not be hampered by the incomplete securing thread when the screw begins to move into a wooden object and cut and drill a hole therein. Then cut waste may smoothly move out of the wooden object so as not to let it split or tear, with operating twisting force diminished and securing force enhanced.
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