发明名称 |
SCREW ELEMENT HAVING A TOOL ENGAGEMENT PORTION |
摘要 |
Screw elements are provided which include a shank having a thread and a head connected to the shank, the head having a tool engagement portion which comprises six corner domes arranged evenly distributed in the peripheral direction of the head and comprising respective flanks, by which the head can be brought into positive cooperation with a hexagon socket of a tool for tightening of the screw element, wherein respective recesses are arranged peripherally between the corner domes, and wherein the flanks of the corner domes are respectively provided at least partially with a radius. |
申请公布号 |
EP3080464(A1) |
申请公布日期 |
2016.10.19 |
申请号 |
EP20140786648 |
申请日期 |
2014.10.14 |
申请人 |
FONTANA FASTENERS R.D. S.R.L. |
发明人 |
BJELOBRADIC, ZORAN;CATTANEO, SERGIO;FISCHER, SVEN;KIRCHHERR, FRANK;REDAELLI, PAOLO |
分类号 |
F16B23/00 |
主分类号 |
F16B23/00 |
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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