发明名称 |
Screw with unthreaded portion formed for absorbing bending loads |
摘要 |
A screw has an elongated shank and a head. The shank has two threaded portions and at least one unthreaded portion extending therebetween. A plurality of axially spaced grooves formed by the removal of material from the unthreaded portion of the shank are provided therein to enable the screw to withstand transverse forces acting on the head when the screw is screwed in.
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申请公布号 |
US5433570(A) |
申请公布日期 |
1995.07.18 |
申请号 |
US19940182073 |
申请日期 |
1994.01.13 |
申请人 |
SFS INDUSTRIE HOLDING AG |
发明人 |
KOEPPEL, NORBERT |
分类号 |
E04D3/36;F16B25/04;F16B25/10;F16B35/04;(IPC1-7):F16B35/00 |
主分类号 |
E04D3/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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