Compression-type connectors for attaching wires ranging in size from #10-16 and having stranded conductors. The connector is similar to coaxial cable connectors in that it includes a connector terminal adapter, a connector body attached to the connector terminal adapter, the connector body having an axial cavity dimensioned to receive a wire in a trailing end thereof, a centerpost disposed within the axial cavity that has a conical tip projecting rearwardly, and a compression sleeve slidably mounted either within the trailing end of the cavity or overlying the trailing end of the connector body. In one embodiment the centerpost is conical with the base of the cone disposed at the leading end of the cavity and the apex of the cone projecting rearwardly and a threaded outer surface therebetween. In a preferred embodiment, the centerpost has a straight threaded shaft with a conical tip. The connector terminal adapter is operable for attachment to a variety of conductive terminals.