Anti-theft fastener

Details Anti-theft fastener Anti-theft fastener

1978-10-05

1980-12-09

Britts, Ramon S.

Brushing, scrubbing, and general cleaning

85 155, 85 45, 70258, F16B 3902

Patent

active

042379490

ABSTRACT:
An attachment fastener is provided in the form of a threaded bolt having a head. Radially displaced threaded axial holes in the head are provided with set screws which, when installed, are recessed within the head and project into an adjacent support arm or to a member to which the bolt is attached. Thus, removal of the bolt requires the prior removal of at least one set screw in order for the bolt to be rotated.

REFERENCES:
patent: 188540 (1877-03-01), Quackenbush
patent: 461523 (1891-10-01), Phelps
patent: 522287 (1894-07-01), Brown
patent: 1599068 (1926-09-01), Swope
patent: 1940455 (1933-12-01), Kilpela
patent: 2770998 (1956-11-01), Schwartz
patent: 2836451 (1958-05-01), Clifton
patent: 3222976 (1965-12-01), Holman

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