Standard N male connectors for use with LMR-195, RFC-195 or RG-58 Coax cable. They are used for a wide variety of connections to terminate coax at a N female jack. The body plating is Silver, the center pin is Gold and the dielectric is Teflon. Center pin attachment is a crimp type (.100 crimp) , and outer ring is crimp (.213 crimp tool needed).