Screw

Details Screw Screw

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 35/04 (2006.01) F16B 23/00 (2006.01) F16B 25/10 (2006.01)

Patent

CA 2283979

The invention concerns a screw (1) provided with a shank (3), a head (2) and a boring part (5). The shank (3) has a thread (4). The head (2) comprises a collar (6) disposed at an axial spacing (B) from the support face (12), a section (7) adjoining the collar at the shank end being provided with a tool-engagement surface (8). A tool can thus grasp the screw head (2) in axially secure manner in the region of the collar (6), this tool then simultaneously being able to transmit the necessary torque in the region of the tool-engagement surface (8).

L'invention concerne une vis (1) comprenant une tige (3), une tête (2) et une partie de perçage (5). La tige (5) est pourvue d'un filet (4). La tête (2) présente une embase (6) située à distance (B) axiale de la surface d'appui (12), une section (7) adjacente à l'embase côté tige étant munie d'une partie d'attaque pour outil (8). La tête (2) de la vis peut ainsi être prise de manière fiable dans le sens axial dans la zone de l'embase (6) par un outil, ledit outil pouvant alors transmettre simultanément le couple requis, également dans la zone de la partie d'attaque de l'outil (8).

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