Spline drive fastener system
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United States of America Patent
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N/A
Issued Date -
May 25, 2006
app pub date -
Jul 20, 2005
filing date -
Nov 23, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A spline drive fastener system involves a fastener wherein a drive engagement surface is formed in the head of the fastener. The drive engagement surface includes eight separate points of engagement. The points of engagement are arranged on eight radial slots formed by the central axis of the fastener head. A method of forming the drive engagement surface comprises forcing a punch against a fastener workpiece to form at least eight radial slots.
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