发明名称 Anti-cross threading fastener
摘要 A threaded fastener for preventing cross threading comprises a head, a cylindrical threaded shank projecting from the head, and a tip section formed on the end of the shank opposite the head. The tip section has a generally circular cross-section and has at least one and preferably two partial threads formed on it. The tip section may be generally cylindrical, conical, frusto-conical or bullet shaped. A method of manufacturing an anti cross thread fastener comprises forming a fastener blank with a shank portion joined to a tip section having a tip threading side and a reduced radius side, and applying threads thereto.
申请公布号 US4915560(A) 申请公布日期 1990.04.10
申请号 US19880234891 申请日期 1988.08.22
申请人 BUELL INDUSTRIAL, INC. 发明人 PETERSON, FRANCIS C.;BERGREN, JEFFREY C.
分类号 F16B35/04 主分类号 F16B35/04
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