Trim Board Screw
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United States of America Patent
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Issued Date -
Jun 30, 2016
app pub date -
Dec 30, 2015
filing date -
Dec 30, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A trim board fastener for composite or plastic material comprises a head having a recessed underside with a rim. A shank extends from the head and has an upper region, an unthreaded intermediate land and a lower region. The upper region has a first diameter traversed by a left hand thread having a first pitch. The lower region has a diameter smaller than the diameter of the upper region and is traversed by a double lead right hand thread which has a second pitch larger than the first pitch.
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