| 摘要 |
In a screw installation structure in which a first member, made of an iron-based material and having a male screw-threaded portion, is fixed to a second member, made of an aluminum-based material and having a screw hole, by screw-threaded connection between the male screw-threaded portion and the screw hole, a non-circular deformed portion is partly formed on an outer periphery of a portion of the first member, exposed from the screw hole of the second member. Also provided is an anti-rotation and anti-loosening member configured to be brought into fitted-engagement with the non-circular deformed portion. The anti-rotation and anti-loosening member, in fitted-engagement with the non-circular deformed portion, is brazed onto a surface of the second member in wall contact with a contact surface of the anti-rotation and anti-loosening member, so as to prevent loosening of the first member relative to the second member. |
