Pin and process for its manufacture

Details Pin and process for its manufacture Pin and process for its manufacture

1984-12-24

1985-10-01

Smith, Gary L.

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

Torque responsive nut or bolt driving connection

Frangible connection

411167, 411281, 411361, 411418, 411437, 10 10R, 10 27R, F16B 3902, F16B 3928

Patent

active

045443122

ABSTRACT:
A threaded pin has flutes along the threads formed by roll-forming threads over a preformed section having either flat sides or dished sides. The major diameter of the threads lies along ridge crests bordering the flutes, and the minor diameter of the threads lies at the base of the flutes. The threads extend along the major diameter in each of the ridge crests for a distance on an order of magnitude of the distance across the mouth of each flute. The preformed section is formed by extrusion. The flutes provide space for material from a threaded collar forced into them to provide a thread lock.

REFERENCES:
patent: 3472119 (1969-10-01), Peterson, Jr.
patent: 3492908 (1970-02-01), Thurston
patent: 3530760 (1970-09-01), Lindstrand
patent: 3875780 (1975-04-01), Cochrum
patent: 4260005 (1981-04-01), Stencel

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