Hollow bolt comprising a longitudinal bore
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United States of America Patent
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Jan 28, 2014
Grant Date -
Mar 4, 2010
app pub date -
May 31, 2006
filing date -
Jun 10, 2005
priority date (Note) -
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Abstract
A process for producing hollow bolts including a longitudinal bore with the hollow bolts being provided with circumferential notches. The hollow bolts are provided with longitudinal grooves extending between elevations determining the bolt diameter, wherein circumferential notches are rolled onto the hollow bolts provided with the longitudinal grooves and the elevations, the longitudinal grooves being of such cross-section that some of the material displaced during rolling-on of the notches flows into the longitudinal grooves.
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