This creation relates to a structural improvement of a conical bolt, and in particular to a structural improvement in which a cone bolt thread is combined with a medium produced by a micro-arc oxidation surface treatment. By using a surface medium of different materials formed on the thread, when the cone bolt is combined with the body thread of the dental implant component, the thread of the two threads can be prevented from forming a cold welding effect due to the upper torque； therefore, the cone is utilized. The structural improvement of the bolt prevents the cone bolt from being excessively tightly coupled with the implant. When the cone bolt of the dental implant component is broken due to the force, the broken portion can be easily taken out without breaking the thread in the implant body of the dental implant component. It has considerable practicality.本創作係有關一種錐體螺栓之結構改良，特別是指將錐體螺栓螺紋與一由微弧氧化表面處理所產生的介質相結合之結構改良。藉由螺紋上形成之不同材質的表面介質，當該錐體螺栓與植牙組件之植體內螺紋結合時，可避免兩者之螺紋因上扭力後而形成冷焊效果；因此，利用該錐體螺栓之結構改良可防止錐體螺栓與植體過度緊密結合，當該植牙組件之錐體螺栓因受力斷裂時，得以容易將斷裂之部分取出，不致破壞到植牙組件之植體內螺紋，具有相當之實用性。
