Screw with anti-skid grooves

The utility model relates to the technical field of screw structures, in particular to a screw with anti-skid grooves. Comprising a screw head and a screw rod connected with the screw head, and the screw head is provided with a top surface, a bottom surface, side surfaces, a groove and a convex part...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ZOU CHANGSHENG
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 relates to the technical field of screw structures, in particular to a screw with anti-skid grooves. Comprising a screw head and a screw rod connected with the screw head, and the screw head is provided with a top surface, a bottom surface, side surfaces, a groove and a convex part; the side surfaces are connected with the top surface and the bottom surface; the grooves are formed in the top face in a concave mode, the grooves extend from the central axis of the screw head in the radial direction of the screw head, and the number of the grooves is at least two. The convex part is arranged in the groove, the upper surface of the convex part is lower than the top of the groove, and the convex part and the central axis of the screw head are arranged at an interval; the groove is formed in the top surface of the screw head, the convex part is arranged in the groove, and the upper surface of the convex part is lower than the top of the groove, so that during use, the acting force of an external s