In the past, embedded and external nuts were difficult to embed and tighten in high torque when embedding plastic parts. This is because the nuts tend to idling and damage the plastic during the fastening process. The "SSOO Nut" high-torque externally mounted nut sold by the First Industry can be embedded in plastic parts and achieve high torque fastening. This product inherits the unique octagonal shape of the embedded nuts sold by the company, and has developed an external (hot press-in) nut that can be embedded in plastic parts. The characteristic is that the nut does not idling, and the male screw can be screwed in with high torque without damaging the fastened plastic. Angle Seat Valve,Piston Valve,Turn Union Ball Valve,Pneumatic Angle Seat Valve ZHEJIANG KINKO FLUID EQUIPMENT CO.,LTD , https://www.kinkoflow.com