20mm PP material continuous threaded cap 20-400 ribbed plastic bottle side nut

20/400 white closed PP top cover 

This plastic nut is of the 20/400 type. It has been used in the medical, industrial, and cosmetics industries. We have multiple colors to choose from, including red, black, and silvery, as well as customizable colors. Carefully crafted, with no burrs or spikes on the edges, and fine threads that rotate freely. Good sealing, not easy to leak