Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Deformable securing means
Patent
1981-04-14
1984-09-18
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Deformable securing means
F16B 1900
Patent
active
044720963
ABSTRACT:
An optimized two piece fastener system and a related method for providing an optimized fastening system including a pin member and a collar having an optimized strength to weight ratio with the materials of the pin member and collar having a predetermined tensile strength ratio, the collar having a preselected excess volume to provide a desired `overpacking` condition, the collar being of size whereby after swage it will define a minimum wall thickness whereby failure can incipiently occur in shear and/or compression and with a pull type fastener providing a breakneck groove with a preselected stress concentration factor whereby the fastener system can be set on workpieces having a collar engaging surface from 0.degree. to 7.degree. relative to a plane normal to the pin axis.
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Dixon Richard D.
Ruhl John H.
Holko Thomas J.
Huck Manufacturing Company
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