Fastener system with spline recess and driving tool

  • US 6,237,450 B1
  • Filed: 04/28/1999
  • Issued: 05/29/2001
  • Est. Priority Date: 04/28/1999
  • Status: Active Grant
First Claim
Patent Images

1. A fastener comprising:

  • a nut; and

    a pin having a shank, a threaded portion on the shank, an end face on the threaded portion of the shank, and a recess in the end face, wherein the recess comprises a plurality of splines spaced around a circumference of the recess, the splines having a width greater than a space between adjacent splines and a concave end surface, and wherein the nut is torqued onto the pin.

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