The screw head with cleft espanada for anti - return of desrosqueamento

摘要

The screw head with cleft espanada for anti - return of desrosqueamento, where a screw (P) receives in the head (1) of your body thread (2), a slit (3) formed with a central cavity (4) which is estedem, toward the opposite ends, two walls rectilinear (5), Which, in turn, are confrontantes with respective walls in ramp (6),Obtained after mild curvature in their bases (7) forming upper portions (8) in the gradual slope, until reaching the surface of the head (1) of the screw (P).When turning in the direction of tapping, the boring tip screwdriver (c) lean in rectilinear walls (5) of the ends of the slit (3), and the frame so that, after imposition of force the body thread (2) of the screw (P) can be rotated and fixed to holes plain or with Phil. This thread or on surfaces of any objects.When the imposition of force for the rotation in the direction of the desrosqueamento tip flat key (c) runs through the bases (7) and curved slides by upper portions (8) in the slope of the ramp walls (6), beyond the limits of the height of the slit (3) and is false, so impossibi Litado and desrosqueamento screw (P).