Bolt equipped with pilot
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 20, 2000
Grant Date -
N/A
app pub date -
Mar 9, 1998
filing date -
Apr 26, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bolt provided with a pilot of the present invention is formed with a pilot portion, on the front end side of a shank portion, having an axis aligning with an axis of the shank portion. The pilot portion is formed with a guide thread portion continuous to the normal thread portion to about half portion of the pilot portion. The connecting portion between the normal thread portion and the guide thread portion has a connection thread portion having an outer diameter gradually reducing from the normal thread portion toward the front end portion of the pilot portion. According to such structure, workability can be improved.
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