| 摘要 |
PROBLEM TO BE SOLVED: To maintain a sealing performance.SOLUTION: A bolt 10 comprises: a flange section 14 extending outward in a radial direction adjacent to the other axial end of a head section 12, and contacting a second connector 60 during normal fitting to restrain further fastening; a step recess section 16 positioned nearer one axial end than a screw section 13, indented inward in the radial direction, and broken when an excess fastening torque is applied; a stop groove 18 that is positioned between the step recess section 16 and the screw section 13 and indented inward in the radial direction, and with which a snap ring 80 contacting a first connector 40 before fitting, and restraining detachment from the first connector 40 is fitted; and a seal groove 15 that is positioned between the step recess section 16 and the flange section 14 and indented inward in the radial direction, and with which a seal member 30 in fluid contact with the first connector 40 during normal fitting is fitted. |
