Fastener head with stabilizing ring
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United States of America Patent
Stats
-
Jul 26, 1988
Grant Date -
N/A
app pub date -
May 8, 1987
filing date -
May 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fastener head, preferably a capped fastener head, including a sloping flange surrounding a central wrenching portion, having wrenching surfaces, such as axial hexagonal surfaces. A rib disposed on the sloping flange provides stability to a fastener head having such a rib by increasing the overturning moment required to buckle a column comprised of a fastener and driver. The rib is continuous around the flange and is as high as the bottom of the wrenching surfaces to reduce wobble during driving of the fastener head.
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