Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Fastener securing element – Resilient metallic
Patent
1992-07-20
1993-03-23
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Fastener securing element
Resilient metallic
411353, 411437, 411918, F16B 2118, F16B 3716
Patent
active
051958600
ABSTRACT:
A pushnut fastener for engagement on a cylindrical stud and particularly suited for conveying to the point of use through automatic feed systems comprises a metal body of relatively thin, uniform thickness having oppositely facing first and second exterior surfaces and a circular radial outer marginal periphery. A central opening extends axially through the body between the oppositely facing exterior surfaces and defines a generally circular inner marginal periphery having resilient finger-like engagement portions for engaging and gripping the exterior of the cylindrical stud. The finger-like engagement portions are inclined to extend laterally of the body outwardly of the first exterior surface a maximum distance of d. A circumferentially continuous cylindrical peripheral flange is formed on the radial outer marginal periphery to extend generally perpendicular to the first exterior surface and terminate in a continuous free end which lies entirely in a plane parallel to the first exterior surface outwardly thereof a distance D which is substantially greater than d. The outer free end is smooth and radiused on the radial inner edge. A relatively large transition radius extends completely about the radial outer marginal periphery between the second face and the circumferentially continuous peripheral flange.
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TRW Inc.
Wilson Neill R.
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