Fastener for automotive injection molding inserts

The invention discloses a fastener for automotive injection molding inserts, belongs to the field of bolts and solves the problems that existing hexagon bolts easily slip during tightening, the quality is not stable and the operation and mounting are complicated. According to the technical scheme, t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XIAO XIAOYUE, ZHU LIJIAN, OU FUPING
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 invention discloses a fastener for automotive injection molding inserts, belongs to the field of bolts and solves the problems that existing hexagon bolts easily slip during tightening, the quality is not stable and the operation and mounting are complicated. According to the technical scheme, the fastener comprises a bolt head part, wherein an inner layer of stepped hole and an outer layer of stepped hole are formed in the bolt head part, the cross section of the inner layer of stepped hole is in a hexagonal socket shape, the bottom surface of the bolt head part extends downwards to form a screw rod, threads are formed in the outer edge of the middle of the screw rod, chamfers are formed on the bottom end surface of the screw rod, a gasket is arranged in the joint of the bolt head part and the screw rod, and the gasket, the bolt head part and the screw rod are integrally arranged.