Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Thread structure
Patent
1990-11-28
1992-08-18
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Thread structure
4119371, F16B 3716
Patent
active
051393808
ABSTRACT:
A sheet metal nut made having a scalloped construction including a tubular barrel portion having a plurality of alternate radially inwardly and radially outwardly and axially extending lobes with a thread formed on the inner lobes which thread form is circumferentially interrupted by virtue of the radial displacement between inner and outer lobes and in one form of the invention the barrel portion having a ring with a continuous thread formed at its outer end to facilitate sealing.
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Lindsey Rodney M.
Pac Fasteners
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