押おさえねじMeanings1nounlocking screw; set screwA screw used to secure a part in place, often by pressing against another component. Technical term in mechanical engineering.この部ぶ品ひんは押おさえねじで固こ定ていされています。This part is secured with a locking screw.押おさえねじを締しめて、軸じくが動うごかないようにしてください。Tighten the set screw so that the shaft does not move.