Fastening screw for assembly plates

Details Fastening screw for assembly plates Fastening screw for assembly plates

1990-06-19

1991-11-12

Lindsey, Rodney M.

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

Headed fastener element with nut, washer, securing means or cap

411304, 411999, F16B 2100

Patent

active

050643240

ABSTRACT:
Threaded fasteners adapted to be preliminarily inserted in bore holes of assemblies are modified to prevent their dislodgement by placing an elastic, plastic material on the fastener shaft in an amount sufficient to protrude outwardly from the shaft far enough to frictionally engage the wall of the bore hole into which the fastener is to be inserted. In a preferred embodiment, a polyamide plastic is placed on the shaft of the fastener in the region of the threaded portion thereof.

REFERENCES:
patent: 3256671 (1966-06-01), Handley
patent: 3285310 (1966-11-01), Boots et al.
patent: 3554258 (1971-01-01), Duffy
patent: 3770036 (1973-11-01), Sherman
patent: 3811733 (1974-05-01), De Ragnaucourt et al.
patent: 4512698 (1985-04-01), Muad
patent: 4813834 (1989-03-01), Smith
patent: 4844677 (1989-07-01), Schwartzman

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