Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent
1997-05-08
1999-02-02
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Thread or shank structure
411423, F16B 3504
Patent
active
058655840
ABSTRACT:
A fastener and method for securing plywood to sheet metal comprises a head, and a shank with three distinct segments. The first segment is a threaded tip segment with a pierce point tip; the second segment is unthreaded; the third segment is threaded and extends from the unthreaded second segment to the fastener head. The method provides for use of a power tool to secure together a plywood sheet with a sheet metal stud using the fastener.
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Estremsky Gary
Saether Flemming
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