A radial compression type coaxial cable end connector has a connector body comprising a tubular inner post extending from a front end to a rear end, and an outer collar surrounding and fixed relative to the inner post at a location disposed rearwardly of the front post end. The outer collar cooperates in a radially spaced relationship with the inner post to define an annular chamber with a rear opening. A fastener at the front end of the inner post serves to attach the end connector to a system component. A tubular locking member protrudes axially into the annular chamber through its rear opening. The tubular locking member is integrally coupled to the connector body and is displaceable axially between an open position accommodating insertion of the tubular inner post into a prepared cable end, with an annular outer portion of the cable being received in the annular chamber, and a clamped position fixing the annular cable portion within the chamber.