Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Leon Torralba miguel
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Leon Torralba miguel
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Publication date
Application filed by Leon Torralba miguelfiledCriticalLeon Torralba miguel
Priority to ES1976220699UpriorityCriticalpatent/ES220699Y/en
Publication of ES220699UpublicationCriticalpatent/ES220699U/en
Application grantedgrantedCritical
Publication of ES220699YpublicationCriticalpatent/ES220699Y/en
Improved security screw, essentially characterized in that a shallow circular recess or recess is made in the end of its pin, so that in the screw there is a short wall surrounding the end of its pin, bringing the fixing nut in one of its planes that will turn out to be the exterior, a diametral groove with a bottom inclined toward the center in which, once screwed in with the screw, it will be partially housed, two opposite points of the surrounding wall at the end of the spike of the screw, leaving the nut fixed and without the possibility of detachment. (Machine-translation by Google Translate, not legally binding)