Internally threaded self-tapping anchor bolt

The utility model discloses an internally threaded self-tapping anchor bolt which comprises a screw head and a screw. The screw is connected with the screw head, and the screw head is provided with a threaded groove which extends axially. The screw is provided with a rod and a thread, the thread is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CAI QINGCHENG
Format:	Patent
Sprache:	chi ; eng
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 utility model discloses an internally threaded self-tapping anchor bolt which comprises a screw head and a screw. The screw is connected with the screw head, and the screw head is provided with a threaded groove which extends axially. The screw is provided with a rod and a thread, the thread is spirally wound on the rod, the diameter of the rod ranges from 5.95 millimeters to 6.2 millimeters, the outer diameter of the thread ranges from 8 millimeters to 8.22 millimeters, and the pitch of the thread ranges from 6.25 millimeters to 6.45 millimeters. The internally threaded self-tapping anchor bolt in the design has the advantages that the internally threaded self-tapping anchor bolt can be easily locked in a preset positioning hole of a wall of a building in a screwed manner, is high in integral structural strength and cannot be loosened, and an excellent loading effect can be realized.