Lock nut with synthetic resin threading

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Having cap

Patent

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Details

411377, 411301, 10 86C, F16B 3714, F16B 3922

Patent

active

048159204

ABSTRACT:
A lock nut of the present invention comprises a metal nut base body and a synthetic resin portion, an internally threaded portion having a diameter smaller than that of an internally threaded portion of the nut base body and extending therefrom being formed in a cap-like portion formed at one end of the nut base body. This lock nut can prevent the occurrence of looseness after the lock nut has been fastened.

REFERENCES:
patent: 3239036 (1966-03-01), Scott
patent: 3520342 (1970-07-01), Scheffer
patent: 4235147 (1980-11-01), Weidner, Jr.
patent: 4316690 (1982-02-01), Voller
patent: 4397437 (1983-08-01), Madej
patent: 4452556 (1984-06-01), Nelson et al.

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