| 摘要 |
PROBLEM TO BE SOLVED: To improve the fixing power in the screw connection of the screw member that has a loosening prevention function. SOLUTION: The first angular part 2a and the second angular part 2b are provided in both ends at a screw thread end. Consequently, the strong fixing power can be obtained because the loosing stop effect is effected by the intrusion of the first angular part and the second angular part in the condition that the screw thread side face of the second screw member 3 contacts in both faces of the screw thread side face 2c, 2d. COPYRIGHT: (C)2004,JPO
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