Self-drilling fastener

Details Self-drilling fastener Self-drilling fastener

1994-08-17

1995-05-09

Wilson, Neill R.

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

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

Pilot end having means enhancing fastening or installation

411 29, F16B 2500

Patent

active

054134447

ABSTRACT:
A self-drilling fastener for use with medium density wood panels, such as oriented strand board (OSB), having a head and first and second shank portions where the first shank portion includes threads for mating engagement with an OSB panel and the second shank portion substantially is formed as a taper shank flat drill which forms the drilling end of the fastener, the taper shank flat drill having conical shaped tapered portions, a triangular drill tip and a pair of wing portions formed on opposite sides of the flat drill forming helical cutting edges.

REFERENCES:
patent: 3316796 (1967-05-01), Young
patent: 4028987 (1977-06-01), Wilson
patent: 4241639 (1980-12-01), Baer
patent: 4480951 (1984-11-01), Regensburger
patent: 4601625 (1986-07-01), Ernst et al.
patent: 4645396 (1987-02-01), McCauley et al.
patent: 4693654 (1987-09-01), Bettini
patent: 4793756 (1988-12-01), Baumgartner
patent: 4900208 (1990-02-01), Kaiser et al.
patent: 5015134 (1991-05-01), Gotoh
patent: 5067864 (1991-11-01), Dewey et al.
patent: 5267423 (1993-12-01), Giannuzzi

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