Knurled copper nuts are mainly used for injection molding, metal spring, special spring.

The usage of knurled copper nut usually adopts: hot melting, hot pressing, ultrasonic welding, injection molding pre-embedded and other processing technology, so that the product and plastic parts tightly bite, play the role of connection, locking, fastening.

Gb brass HBP59-3 bar material, automatic turning, surface roughness Ra3.2, machining accuracy dimensional tolerance can reach ± 0.01mm.

Surface treatment: anti-oxidation or quenching hardening treatment.

PE bag + carton packaging shipping.

Tiansheng has been developing and producing fasteners professionally for 12 years. You are welcome to customize the fasteners by drawing/sample.