Hard austenitic stainless steel screw

Details Hard austenitic stainless steel screw Hard austenitic stainless steel screw

1994-08-04

1995-05-23

Roy, Upendra

Metal treatment

Stock

Carburized or nitrided

148230, 148317, 411378, 411902, 411903, 428626, 428655, C23C 826

Patent

active

054177766

ABSTRACT:
The surface layer of a hard austenitic stainless steel screw is formed as nitrided layer and then is covered by a plating coat or a resin coat to give properties such as shortening the boring time as well as heightening the surface hardness of the screw itself.

REFERENCES:
patent: 4730970 (1988-03-01), Hyner et al.
patent: 4756774 (1988-07-01), Fox
patent: 4802807 (1989-02-01), Offenburger et al.
patent: 4964774 (1990-10-01), Lat et al.
"Selecting the Right Fastener Coating", Assembly Engineering, Aug. 1990, No. 8, pp. 21-23.

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