A coaxial connector with a connector body is provided with a connector body bore. An annular coupling groove is provided in the connector body bore open to a cable end of the connector body. A clamp sidewall of the coupling grove is angled inward from a bottom of the coupling groove. A slip ring seated within the coupling body bore is provided with a grip surface. An annular compression body is positioned between the slip ring and a compression surface of the coupling body. The connector body and the coupling body are coupled together via threads. The slip ring is dimensioned for axial advancement of the coupling body along the threads to exert a compression force against the compression body to clamp a leading edge of the outer conductor between the slip ring and the clamp sidewall.