Low torque wood screw
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United States of America Patent
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-
May 14, 1996
Grant Date -
N/A
app pub date -
Sep 7, 1994
filing date -
Sep 7, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A low torque fastener screw for securing a wooden workpiece to a substrate includes an elongated body defining a longitudinal axis and having an enlarged head formed on one end, an external pointed thread formed on an opposite end, an elongated unthreaded shank between the enlarged head and the threaded end, and a reamer formed at the juncture of the shank and thread. The reamer has a plurality of longitudinal cutting edges formed about its periphery which ream out the hole formed by the threaded end to a diameter larger than the shank, thereby reducing frictional resistance to rotation of the screw and optimizing the torque applied by the driving tool.
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Cited Art Landscape
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