| 摘要 |
According to the invention, the nut has two half-jaws 1a, 1b which are articulated and joined together by a locking sleeve which is immobilised on the bodies 4 and 5 of the half-jaws in order to cause them to pivot from a free position to a permanent screwing position, this position being provided by the pressure of two springs 18. Applications: rapid mounting and removal of a fastening using a nut. <IMAGE>
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