Externally splined fastener
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United States of America Patent
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Sep 20, 2016
Grant Date -
Aug 15, 2013
app pub date -
Jun 14, 2011
filing date -
Jul 22, 2010
priority date (Note) -
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Abstract
A fastener (2) for securing a workpiece comprising a plurality of workpiece members, said fastener comprising a shank (4) and a radially enlarged head (6) wherein the fastener further comprises axial voids (40) and splines (18), such that when the fastener is installed into a workpiece by a mandrel, breakstem or pin, the shank of the fastener is expanded such that the crests of the splines are caused to mechanically engage with the internal walls of the fastener apertures.
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