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The screw (11) has a thread (13) arranged in areas over a circumference of a shaft (12), and a helix portion (14) provided in the thread. Cutting bodies (26) are arranged in recesses of the thread, where the cutting bodies are made of material having hardness greater than hardness of the thread. Lon...

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Bibliographische Detailangaben
Hauptverfasser:	OPPENEIGER, SIMON, HUBER, FRANZ
Format:	Patent
Sprache:	dan
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The screw (11) has a thread (13) arranged in areas over a circumference of a shaft (12), and a helix portion (14) provided in the thread. Cutting bodies (26) are arranged in recesses of the thread, where the cutting bodies are made of material having hardness greater than hardness of the thread. Longitudinal extensions of the cutting bodies are oriented along the helix portion so that longitudinal axes form an angle of specific degrees with respective to tangent of the helix portion.