Wheel nut

Details Wheel nut Wheel nut

1995-03-06

1997-01-28

Meyers, Steven N.

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

Internally threaded fastener element, e.g., nut, etc.

Multipart

411544, F16B 3708

Patent

active

055972799

ABSTRACT:
A washer for a male or female threaded fastener includes an annular ring portion and a seat portion with a cantilever portion extending therebetween. The washer hardness is selected to exceed the threaded fastener hardness by an amount that enhances the elastic deflection of the washer and reduces the tendency of the fastener to loosen. The selected hardness relationship also reduces the washer diameter dilation during loading and the permanent deformation of the washer diameter.

REFERENCES:
patent: 1352918 (1920-09-01), Rohbock
patent: 1961470 (1934-06-01), Winchester et al.
patent: 2169047 (1939-08-01), Horn
patent: 3992974 (1976-11-01), Miki
patent: 4149446 (1979-04-01), Spengler
patent: 4292007 (1981-09-01), Wagner
patent: 4431353 (1984-09-01), Capuano
patent: 4717299 (1988-01-01), Underwood
patent: 4971498 (1990-11-01), Goforthe
patent: 5372434 (1994-12-01), Roberts
The Mechanical Properties of Metals, by J. G. Tweedale, copyright 1964 pp. 165-166, Use of Hardness Measurement to Determine Properties.

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