发明授权
US06817816B2 Tapping assist fastening element and method 失效
攻丝辅助紧固元件和方法

  • 专利标题: Tapping assist fastening element and method
  • 专利标题(中): 攻丝辅助紧固元件和方法
  • 申请号: US10217034
    申请日: 2002-08-13
  • 公开(公告)号: US06817816B2
    公开(公告)日: 2004-11-16
  • 发明人: James Allen Hill
  • 申请人: James Allen Hill
  • 主分类号: F16B3930
  • IPC分类号: F16B3930
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.
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