Grooved nut and manufacturing method thereof
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United States of America Patent
Stats
-
Nov 26, 2002
Grant Date -
May 9, 2002
app pub date -
Jan 3, 2001
filing date -
Nov 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A grooved nut including a cylindrical shaft portion having a screw hole at the center, a head portion whose outer periphery is polygonal and which is provided at one end portion of the shaft portion, and a peripheral groove provided at a boundary part between the head portion and the shaft portion, in which the peripheral groove is formed by a plasticizing process.
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