Series N are very popular screw--coupling middlepower coaxial connectors. The type N connectors are a kind of ... with screw coupling mechanism, are widely used connect of the RF coaxial--cable in electronic equipment and instruments,. Key PerformanceTemperature range-65~+ ... gold platedInsulatorsPTFEGasketsSilicone rubberCrimp ferrulesCopper alloy , nickel plated {88}N-JWC3 connector for RG58 cable