RS 50 Ohm BNC RF Coaxial Silver Plated Cable Clamp Plug Connectors 50 Ohm BNC RF coaxial plug connectors with bayonet coupling and a cable clamp termination. These 50 Ohm BNC straight RF coax cable clamp plugs have a silver plated body and silver plated Center contact and are for use with a variety RF coaxial cable types.