Male threaded fastener capable of use with a swaged collar

Details Male threaded fastener capable of use with a swaged collar Male threaded fastener capable of use with a swaged collar

1988-05-31

1989-02-21

Gall, Lloyd A.

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

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

Deformable securing means

411336, 411417, 411938, F16B 3902

Patent

active

048060542

ABSTRACT:
A male threaded fastener has a plurality of impressions on the nonload-bearing flank of the thread that receives material swaged from a collar to lock the collar and pin together and increase the breakaway torque of the collar. The impressions have a depth of about 0.1 to about 0.3 of the depth of the thread from root to crest. The thread is free of impressions at least 1.5 pitch lengths from its ends.

REFERENCES:
patent: 313552 (1885-03-01), Sweet
patent: 612370 (1898-10-01), Wall
patent: 784014 (1905-02-01), Steel
patent: 2177004 (1939-10-01), Purtell
patent: 2301181 (1942-11-01), Ilsemann
patent: 2543100 (1951-02-01), Engh
patent: 3421562 (1969-01-01), Orloff et al.
patent: 3517717 (1970-06-01), Orlomoski
patent: 3850215 (1974-11-01), Orlomoski
patent: 3882917 (1975-05-01), Orlomoski
patent: 3927503 (1975-12-01), Wilson
patent: 4252168 (1981-02-01), Capuano

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