Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member extending between and engaging flat formed on side of...
Patent
1978-11-13
1981-05-19
Britts, Ramon S.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member extending between and engaging flat formed on side of...
411122, 411410, F16B 2300, F16B 3910
Patent
active
042678706
ABSTRACT:
A screw fastener with a multi-point wrenching head and locking capabilities characterized by an annular bearing collar having at least one flat surface on its periphery adapted for engagement with the locking tab of a locking strip.
REFERENCES:
patent: 87953 (1869-03-01), McCown
patent: 627323 (1899-06-01), Caron
patent: 3812757 (1974-05-01), Reiland
Britts Ramon S.
The Ferry Cap & Set Screw Co.
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