1. When Ben-hadad bragged about destroying Samaria, Israel’s king answered: “Do not let one girding on [his armor in preparation for battle] boast about himself like one unfastening” his armor after returning victorious from battle.

2. The present invention relates to a screw for an implant and, more particularly, to a screw for an implant capable of preventing unfastening of the screw, which keeps fastening a fixture and an abutment, thereby maintaining a stable fastening state.