Fastening element
A fastening element has a shaft, and a tapping thread carried by the shaft and having at least one screw thread a section of which that adjoins the thread pilot, having a plurality of following one another thread steps having different cross-sections, with a cross-section of the at least one screw t...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A fastening element has a shaft, and a tapping thread carried by the shaft and having at least one screw thread a section of which that adjoins the thread pilot, having a plurality of following one another thread steps having different cross-sections, with a cross-section of the at least one screw thread decreasing stepwise toward the thread pilot from a thread step to a thread step, with the thread steps having respective cutting edge-forming end surfaces aligned, at least partially, in a direction of the thread pilot. |
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