| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal structure with which a seal at a boundary portion between a welded threaded fastener and a weld target surface can be properly coordinated by easy work without causing a defect such as reduction of weld strength of the welded threaded fastener such as a weld nut.SOLUTION: To a welded threaded fastener 1 welded to a vehicle constituent member 2, a sealing sheet 3 in a ring shape having at least a part that can be thermally fused is outwardly fitted, and with the sealing sheet 3, a circumference of a boundary part 4 between a seat surface 14 of the welded threaded fastener and a weld target surface 20 of the vehicle constituent member 2 is covered. An entire circumference of an area 30a close to an inner circumference edge of the sealing sheet 3 and an entire circumference of an area 30b close to an outer circumference edge are welded to an outer surface of the welded threaded fastener 1 and the weld target surface 20, respectively. |
