From crowded check bolt

The utility model discloses a from crowded check bolt, it is protruding including head, screw rod and annular, protruding and the head lower surface integrated into one piece of annular, the annular lug is equipped with the cross -section with the fixed terminal surface of screw rod and is corrugate...

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Bibliographic Details
Main Author YOU CHENGWU
Format Patent
LanguageChinese
English
Published 13.04.2016
Subjects
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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Summary:The utility model discloses a from crowded check bolt, it is protruding including head, screw rod and annular, protruding and the head lower surface integrated into one piece of annular, the annular lug is equipped with the cross -section with the fixed terminal surface of screw rod and is corrugated locking tooth, the head top is equipped with the counter bore, the counter bore lower extreme is connected with the recess, the screw rod is equipped with the external screw thread, the external screw thread cross section is triangle -shaped. Simple, the locking effectual and head of this bolted construction is difficult to skid.
Bibliography:Application Number: CN20152946782U