Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1991-02-20
1991-11-12
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411386, 411418, F16B 3712
Patent
active
050643231
ABSTRACT:
A threaded fastener or insert has a generally cylindrical body and about the body is formed a thread. Two sets of flutes are formed in the thread extending axially of the body. One of these sets extends deeper into the thread than the other set.
REFERENCES:
patent: 3405596 (1968-10-01), Neuschotz
patent: 4818165 (1989-04-01), Shirai
Tappex Thread Inserts Limited
Wilson Neill R.
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