发明名称 Tapping assist fastening element and method
摘要 A fastening element and method that utilizes a fastener or stamping which is capable of forming a fastening assembly by engagement with a self-tapping fastener is disclosed. The fastening element includes one or more indentations formed within a portion of the circumference of an unthreaded bore located within the fastening element. Each indentation has an edge that can have the same helix angle or pitch as the self-tapping fastener that it is to engage to serve as a guide to properly align the fastener within the bore. The indentations also assist formation of mating threads within the element by significantly reducing the required end load to start the tapping process.
申请公布号 US2004033122(A1) 申请公布日期 2004.02.19
申请号 US20020217034 申请日期 2002.08.13
申请人 HILL JAMES ALLEN 发明人 HILL JAMES ALLEN
分类号 F16B35/04;F16B37/00;(IPC1-7):F16B39/22 主分类号 F16B35/04
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