| 摘要 |
A precision mounting screw with a male and female section. It is a philips screw with radial lobes (7) with sides (8) containing a passing plane for the axle of the screw. The surfaces radially external of the lobes lying on the cylindrical or prismatic surface of with generatrices parallel to the axle of the screw. The screw used with a cone-shaped key with sections that correspond to the above mentioned parts. It can possibly used as an anti-theft screw for car tires. (Fig.1)<IMAGE> |
