发明名称 |
MEJORAS A TORNILLO SUJETADOR CON CABEZA DE PLASTICO |
摘要 |
A threaded fastener unit and driver system for maximizing driving force distribution, the fastener unit having a composite head section comprised of a thin-walled uniform thickness plastic coating covering all surfaces of an enlarged head portion on a drilling or tapping device. The composite head includes internal torque transmitting surfaces formed by slots intersecting at generally right angles to one another forming four upstanding posts with a radially extending flange at the base of the posts. The fastener unit is configured so that the driving force distribution is maximized to eliminate damage to the plastic during installation of the fastener in a workiece. |
申请公布号 |
MX143858(A) |
申请公布日期 |
1981.07.24 |
申请号 |
MX19770169337 |
申请日期 |
1977.06.03 |
申请人 |
ILLINOIS TOOL WORKS INC |
发明人 |
HERKES DANIEL JOSEPH;REINWALL ERNEST WILLIAM JR |
分类号 |
B25B15/00;F16B23/00;F16B25/10;F16B33/00;(IPC1-7):16B23/00 |
主分类号 |
B25B15/00 |
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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