A coaxial connector with a connector body is provided with a connector body bore, an annular ramp surface proximate the cable end of the connector body and a connector body mounting surface proximate the cable end of the connector body. A back body is provided with a back body bore and a back body mounting surface proximate the connector end of the back body, the back body mounting surface dimensioned to couple with the connector body mounting surface via axial compression. A surface grip on an outer conductor section of the back body bore is dimensioned to grip an outer diameter of the outer conductor, whereby the outer conductor is retained within the back body bore during the axial compression. The surface grip may be applied, for example, as a helical burr or a grip ring with a gripping feature.