发明名称 Self-drilling and thread-forming connecting element
摘要 The present invention relates to a self-drilling and thread-forming connecting element, in particular a screw. The screw comprises a threaded shank including a cylindrical core and a thread formed as a protuberance on the core. The screw also includes an end drilling tip for drilling a core hole for the thread.
申请公布号 US6698987(B1) 申请公布日期 2004.03.02
申请号 US20020980919 申请日期 2002.05.10
申请人 A-Z AUSRUSTUNG UND ZUBEHOR GMBH & CO. KG 发明人 DICKE ROBERT
分类号 F16B25/10;F16B33/02;F16B35/04;(IPC1-7):F16B25/10 主分类号 F16B25/10
代理机构 代理人
主权项
地址