为了解决紧固螺栓、螺母在负荷和振动下的松动问题,美国H.D.Holmes发明了一种新型防松螺纹。这项发明已在17个国家取得了专利权。防松螺纹丝锥能在螺孔的根部切出30°的楔形,拧入螺栓的顶部紧压在该楔形斜 In order to solve the fastening bolts, nuts loose under load and vibration problems, the United States H.D.Holmes invented a new anti-loosening thread. This invention has been patented in 17 countries. Anti-loosening thread Tap in the root of the screw cut 30 ° wedge, screwed into the top of the bolt pressed against the wedge