| 摘要 |
Fastener ( 1 ) includes a head ( 2 ) and a body ( 3 ). The head ( 2 ) has a transverse stop ( 5 ) able to bear on the first piece ( 23 ). The body ( 3 ) has a first spacer ( 10 ) and a second spacer ( 11 ), coaxial and disposed in line with each other in an axial direction. The first spacer ( 10 ), adjacent to the head ( 2 ), has a diameter greater than that of the second spacer ( 11 ) which extends starting from the first spacer ( 10 ), on the opposite side from the head ( 2 ). Each of the spacers ( 10, 11 ) has at least one lug ( 13; 18 ).
|
