| 摘要 |
PROBLEM TO BE SOLVED: To provide a fastening member such as a bolt and a nut of low cost, capable of surely preventing electric corrosion and securing axial force retaining effect. SOLUTION: The bolt 10 as the fastening member has a resin layer 15 including a resin having superior water repellency and including polyamidoimide as its base resin, at least on a face kept into contact with a magnesium alloy member 1, of a base material surface. As the resin having superior water repellency, one or both of a silicone resin and a fluorine resin are preferably used. Preferably, a content of the silicone resin included in the resin layer 15 is 0.0001-5 wt%, and a content of the fluorine resin included in the resin layer 15 is≥0.5 and <5 wt%. A thickness of the resin layer 15 is preferably 2-30μm. COPYRIGHT: (C)2006,JPO&NCIPI
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