Rolled copper nuts are widely used in the following fields: plastic case of laptop, desktop computer, GPS plastic case, router plastic case, mobile phone plastic case, plastic case of unlimited communication facilities, plastic case of household appliances, plastic case of automobiles, electrical appliances, medical, electronic and other plastic cases.

The use of knurled copper nuts usually adopts hot melting, hot pressing, ultrasonic welding and injection moulding pre-embedding processes, which make the products and plastic parts closely occlude, play the role of connection, locking and tightening.