Self-piercing nut
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United States of America Patent
Stats
-
N/A
Issued Date -
Jul 21, 2005
app pub date -
Jan 10, 2005
filing date -
Jan 19, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A self-piercing nut has a pilot portion (13) integral with a nut body (11) and around a central threaded bore (12), the pilot portion has an end face for punching a hole in a metal panel (30). A periphery (14) of nut body and the pilot portion (13) define between them an annular groove (15), and a circular edge (31,32) around the hole is pressed into this groove to firmly attach the nut to the panel. The periphery has slanted and upright wall sections (16,18), and an inner surface (17) of each slanted section forms an inflated cavity, with each upright section's inner surface (19) in parallel with the nut axis. Each slanted section (16) has radial shoulders (20) continuing to upright sections (18) and protruding into the groove (15) from a plane including the upright sections.
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