Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Metallic resilient securing means
Patent
1998-04-14
1998-12-22
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Metallic resilient securing means
411107, 411396, 411552, F16B 2118, F16B 3900
Patent
active
058510958
ABSTRACT:
A captive screw attachable an upper panel, for attaching the upper panel to a lower surface, the lower surface having a threaded hole, the captive screw having a screw, a ferrule that attaches to the upper panel, a thin-walled, cylindrical hollow knob and protrusions integral to the outer perimeter of the head portion of the screw to rigidly secure the perimeter of the head of the screw to the inner surface of the knob, the protrusions providing a press-fit of the screw to the inner surface of the knob where the screw is pressed into the knob from the underside of the knob.
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Dickerson Harry L.
Ellis Thomas J.
McCormack Edward A.
Southco Inc.
Wilson Neill
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