| 摘要 |
A support metal member and a screw-nut holder are provided to correspond to the support metal member even though the diameter of the hanging bolt is different by using a screw-nut in which the flange having the other diameter is adhered. A support metal member(10) comprises a connection part(11), a first plate piece(12) which is integrally installed in one end of the connection part, and a second plate unit(13) which installed parallel at the first plate piece in the other end part of the connecting plate part. The support metal member includes a tip-end part of the fastening bolt combined in the screw-hole(17) of the first plate piece. The support metal member supports the top end portion of the hanging bolt with the mounting hole(25) of the second plate unit.
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