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Sleeved fastener assembly

  • US 10,186,788 B2
  • Filed: 05/16/2016
  • Issued: 01/22/2019
  • Est. Priority Date: 02/04/2013
  • Status: Active Grant
First Claim
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1. A method of preparing a conductive sleeved fastening system for use, comprising:

  • providing a fastener having a fastener head, a fastener shank extending from said fastener head, and a fastener sleeve provided on said fastener shank and a fastener sleeve flare on said fastener sleeve;

    preparing a nut configured to attach to the fastener shank, by forming a counterbore therein, the counterbore extending from a top surface of the nut and having;

    a counterbore diameter sized to maintain a radial gap between an inward-facing surface of the counterbore and an outer surface of the fastener sleeve; and

    a counterbore depth sized to maintain an axial gap between a distal end of the fastener sleeve and a bottom surface of the counterbore; and

    forming a fillet between the inward-facing surface and the bottom surface of the counterbore.

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