Self drilling fastener

Details Self drilling fastener Self drilling fastener

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 25/04 (2006.01)

Patent

CA 2139607

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.

La présente invention a pour objet un élément de fixation auto-taraudeur pour utilisation avec des panneaux de bois de densité moyenne, tels les panneaux à copeaux orientés (panneaux OSB); l'élément de fixation en question comporte une tête, une tige comportant une première et une deuxième parties, la première partie de cette tige étant pourvue de filets servant au vissage de l'élément en question dans les panneaux OSB, la deuxième partie de la tige, soit l'extrémité servant au perçage, de forme conique, se terminant par une pointe plate et triangulaire servant au perçage; une paire d'ailettes formées de part et d'autre de la pointe de perçage de forme plate constituent les tranchants hélicoïdaux.

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