PERFECCIONAMIENTOS EN UNIONES ROSCADAS

摘要

The threaded connection is formed between a tapped component and an externally threaded two part bolt. The two bolt parts are each provided with an external thread of the same pitch and hand in order to be threaded simultaneously into the tapped component. One bolt part is also provided with an extension which is threaded into the other bolt part via a screw thread which has an opposite hand or pitch to the external screw threads. When the two bolt part are threaded into the tapped component, the screw threaded extension prevents unthreading of one bolt part relative to the other.