Bolt
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Jan 20, 2016
filing date -
Oct 3, 2013
priority date (Note) -
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Abstract
The bolt of the present invention can reliably peel coating even when fastened with a low torque, and can secure sufficient conductivity. A coating peeling part for peeling coating is formed at a tip end of an axis part in which a regular screw part is formed. The coating peeling part includes crushing parts having a trapezoidal top part and having a flank which is projected at a different angle with respect to the flank of the regular screw part; and a protruding part which is arranged adjacent to the crushing parts and whose top part projects beyond the outer diameter of the regular screw part.
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