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Hijos de HA Bender SA
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Hijos de HA Bender SA
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Application filed by Hijos de HA Bender SAfiledCriticalHijos de HA Bender SA
Priority to ES89650UpriorityCriticalpatent/ES89650Y/en
Publication of ES89650UpublicationCriticalpatent/ES89650U/en
Application grantedgrantedCritical
Publication of ES89650YpublicationCriticalpatent/ES89650Y/en
A self-tapping screw, essentially characterized in that the lower end of its threaded shank has a short transverse groove, which allows the two halves to be brought closer when said threaded shank is inserted in the smooth bore of a somewhat lower diameter, worked in the part that must be screwed, whose drill is threaded while entering it by rotation and translation. (Machine-translation by Google Translate, not legally binding)