| 摘要 |
PROBLEM TO BE SOLVED: To provide an interior plate material fitting structure to a substrate material capable of suppressing deterioration of pull-out strength, and suppressing falling of an interior plate material even when external force repeatedly acts due to an earthquake or the like.SOLUTION: An interior plate material fitting structure D to a substrate material screws a machine screw 13 from a side of one surface 5a to be penetrated into a plate-like interior plate material 5, screws the machine screw 13 to a substrate material 1 arranged on a side of the other surface 5b of the interior plate material 5 to fix the interior plate material 5 to the substrate material 1, and is constituted by screwing the machine screw 13 to the interior plate material 5 from the side of one surface 5a while inserting a shank 13a of the machine screw 13 into a center hole 14a of a washer 14, and interposing the washer 14 between a head 13b of the machine screw 13 and the side of the one surface 5a of the interior plate material 5. |
