Anticross-threading male fastener

Details Anticross-threading male fastener Anticross-threading male fastener

1995-03-24

1997-03-11

Meyers, Steven N.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Pilot end having means enhancing fastening or installation

411411, 411417, F16B 2500

Patent

active

056094558

ABSTRACT:
An externally threaded male fastener has a right circular cylinder at one end that is slidably engageable with the internal threads of a female element, a pair diametrically opposed circumferentially truncated approach thread portions between the right circular cylinder and its conventional threads, and a pair of diametrically opposed unthreaded portions between the approach thread portions that preclude cross-threading with an internally threaded female element.

REFERENCES:
patent: Re28907 (1976-07-01), Eibes
patent: 4534690 (1985-08-01), Barth
patent: 4915560 (1990-04-01), Peterson
patent: 4952110 (1990-08-01), Avgoustis et al.
patent: 4973209 (1990-11-01), Essom
patent: 4981406 (1991-01-01), Weiss
patent: 5000639 (1991-03-01), Hinkley
patent: 5122132 (1992-06-01), Bremer
patent: 5209622 (1993-05-01), Kazino
patent: 5304022 (1994-04-01), Huska
patent: 5419667 (1995-05-01), Augoustis

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