| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting structure with recyclability by connecting the same system members to be connected, using an aluminum alloy made self-tapping screw which has an improved self-tapping efficiency even if comparatively soft 5000 system and 6000 system aluminum alloy may be adopted. SOLUTION: In the connecting structure to connect members to be connected (10, 11) by the self-tapping screw (1), the self-tapping screw and the member to be connected are made of an aluminum alloy selected from the group of 5000 system and 6000 system aluminum alloy and a frictional co-efficient lowering surface treatment is conducted to at least a screw part (4) surface of the self-tapping screw. Under a suitable mode, the self-tapping screw and the member to be connected are made of the same system of aluminum alloy. COPYRIGHT: (C)2007,JPO&INPIT
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