Back-out resistant fastener
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United States of America Patent
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Apr 4, 2017
Grant Date -
Mar 12, 2015
app pub date -
Sep 9, 2014
filing date -
Sep 11, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fastener is provided having a cylindrical shaft with a generally constant diameter located between a head and a tapered point. The fastener has a thread integrally extending from the shaft and extending along a portion of a length thereof that terminates at an end of the shaft proximate the head with a back-out discontinuity. At least one ring integrally extends from the shaft in an area of the shaft between the back-out discontinuity and the head. The at least one ring has an outside diameter that is less than an outside diameter of the thread.
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