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Priority to ES1969151366UpriorityCriticalpatent/ES151366Y/en
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Publication of ES151366YpublicationCriticalpatent/ES151366Y/en
Lag screw used mainly for fixing pieces on concrete panels, characterized in that it is constituted by a lag screw body and a nut, which form two different mechanical parts; the body of the lag screw having a thread with which the threading of the nut is capable of cooperating. (Machine-translation by Google Translate, not legally binding)