Hand screw screwed directly by hand

The utility model relates to a hand screw screwed directly by hands and used for fixing articles such as circuit boards and the like. The utility model is characterized in that a nut (1) is arranged at one end of the screw rod (2), threads (3) are arranged at the other end of the screw rod (2) and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	XU ZHENGAN
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 a hand screw screwed directly by hands and used for fixing articles such as circuit boards and the like. The utility model is characterized in that a nut (1) is arranged at one end of the screw rod (2), threads (3) are arranged at the other end of the screw rod (2) and a groove (4) is arranged on the nut (1). The utility model has the advantages that the diameter of the handhold nut part is larger than the diameter of the nut of the common screw, the length is longer, and the hand feeling is good and the screwing is facilitated during hand screwing because fine threads are manufactured; the screw rod can be designed with proper length according to the practical need; the production and the manufacturing are facilitated and the hand screw is suitable for common places because the threads are standard threads; and the dissembling and the assembling of the circuit board can be carried out without requiring any tool, and the field maintenance and the field repair are convenient.