Coated threaded fasteners with coating-free crests

Details Coated threaded fasteners with coating-free crests Coated threaded fasteners with coating-free crests

1996-05-02

1997-11-11

Wilson, Neill H.

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

Threaded fastener locked to a discreet structure

Design of fastener or substructure restricts rotation

411411, 411903, 411914, 219 99, F16B 3504, F16B 3706

Patent

active

056856806

ABSTRACT:
A method for fabricating a threaded fastener having a discontinuous coating of a contaminant-inhibiting coating material. In a preferred embodiment, the threaded fastener is formed so as to provide a coated fastener with substantially coating-free crests. The article resulting from the fabrication method also forms a part of the present invention. The resulting threaded fasteners include electrically conductive portions, allowing use of the fasteners in fabricating structural assemblies using welding techniques.

REFERENCES:
patent: 4545712 (1985-10-01), Wallace
patent: 5000636 (1991-03-01), Wallace
patent: 5190424 (1993-03-01), Kazino et al.
patent: 5461209 (1995-10-01), Yamada et al.

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