Self-drilling bolt and nut assembly
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United States of America Patent
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Apr 25, 2017
Issued Date -
N/A
app pub date -
Dec 22, 2014
filing date -
Oct 27, 2009
priority date (Note) -
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Abstract
A self-drilling bolt and nut assembly includes a nut which has a window to permit visual inspection of the fastener thread upon engagement with the nut. The nut also includes a protective cap or receives a protective cap so that upon threadably engaging the fastener with the nut, the drill tip of the fastener is automatically received in the cap. The nut also has at one end a plurality of projections to enhance the locking engagement. The self-drilling bolt may have an integral washer and employ a clamping plate engageable against the washer.
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