| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nail for a pinball game machine, which can achieve the strength with which the nail is sufficiently fixed even to a thin panel with holes previously formed, prevented from loosening or coming off when an external force is applied, hardly broken, small in variation in flexural life and can be bent in a desired direction to facilitate nail adjustment; and to provide a panel for the pinball game machine using the nail. Ž<P>SOLUTION: The nail includes a head part and a shank part, wherein the shank part is hammered in the panel. The shank part is provided with a non-screw part without a screw on a base end side and a screw part where a screw is formed on an outer peripheral face on the point side, wherein the number of thread ridges of the screw part is 6 or more. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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