发明名称 Screw comprising a thread-forming thread, blank for the production of said screw, and screw connection
摘要 The invention relates to a screw 1 comprising a thread-forming thread 2 for the creation of a metric thread, comprising a load-bearing thread portion 3 and a forming thread portion 4 which is tapered to the tip of the screw. The flights of the tapered thread portion 4 are sharp-edged and fully formed.
申请公布号 US2011206938(A1) 申请公布日期 2011.08.25
申请号 US201113064945 申请日期 2011.04.27
申请人 发明人 AMBROS OLAF
分类号 B32B1/00 主分类号 B32B1/00
代理机构 代理人
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