发明名称 |
Pull stem fastener with pull groove for swaging collars |
摘要 |
A fastener for installation into a workpiece which may be installed by either a swaging operation or a torquing operation. The fastener includes an enlarged protruding head which is proximal to a substantially cylindrical smooth shank portion. A threaded shank portion positioned distal to the smooth shank portion includes a male thread which is sufficiently strong to have a swage collar swaged onto it. Distal to the threaded shank portion is a pin tail portion having a surface which is configured to engage a tool. Positioned between the threaded shank portion and the pin tail portion is a breakneck groove having a lower tensile strength than any other portion of the fastener. The tensile strength of the breakneck groove is controlled such that the fastener severs within the breakneck groove when a preset range of tension is applied to the pin tail portion by the tool. |
申请公布号 |
US8118527(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20030702256 |
申请日期 |
2003.11.05 |
申请人 |
SCHULTZ DENNIS;HI-SHEAR CORPORATION |
发明人 |
SCHULTZ DENNIS |
分类号 |
F16B29/00;F16B35/00;B21J15/02;F16B19/05;F16B37/02 |
主分类号 |
F16B29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|