Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 20, 2008
Patent Application Number
10993684
Date Filed
November 19, 2004
Patent Primary Examiner
Patent abstract
The present invention relates to a method for manufacturing a bolt that includes an axis, including the steps of providing a metal rod, providing a die, extruding the metal rod through use of the die, cold forming the metal rod, at least in part, to provide a shaft and a head so that, the head includes a torque transferring structure, the head includes a flange located adjacent to the torque transferring structure, a generally cylindrical surface is located adjacent to the flange, and a sloping surface that extends from the generally cylindrical surface towards the axis, rolling a threaded surface into the shaft, and providing a plurality of grooves so that the grooves extend from an end of the bolt.
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