Tamper-proof set screw

Details Tamper-proof set screw Tamper-proof set screw

1998-11-02

2000-06-13

Saether, Flemming

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

Externally threaded fastener element, e.g., bolt, screw, etc.

Set screw

411910, 411258, 411 2, F16B 3500, F16B 3900

Patent

active

060741473

ABSTRACT:
A tamper-proof seat screw (30), such as an idle set screw for a throttle lever of a throttle body, comprises a tool-engageable head (31) at one end, a foot (34) at an opposite end, and a threaded shaft (32) between the head and the foot with the threaded shaft having an adhesive coating (36) thereon that forms an adhesive joint between the threaded shaft and a threaded throttle body bore (10a). An anti-tampering slip collar (42) is provided on an anti-tampering break-away shaft (40) between the threaded shaft and the foot to hinder post-factory tampering of the screw.

REFERENCES:
patent: 1231164 (1917-06-01), Jahns
patent: 2572613 (1951-10-01), Goff
patent: 4320693 (1982-03-01), Benjamin
patent: 4506917 (1985-03-01), Hansen Arne
patent: 4543935 (1985-10-01), Tuckey
patent: 4718828 (1988-01-01), Breeck
patent: 4867624 (1989-09-01), Walley
patent: 5081972 (1992-01-01), Daly et al.
patent: 5120168 (1992-06-01), Padula
patent: 5713705 (1998-02-01), Grunblchler

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