Abstract: A low insertion force, high current connector terminal for vehicular applications. The terminal includes a receptacle connector member having means for varying the inside diameter of a socket thereof, and a pin connector member insertable therein. The receptacle connector member includes an outboardly displaceable resilient finger having a first stop surface engageable with a second stop surface formed on the pin connector member to prevent accidental axial displacement of the two connector members. A slot and mating guide are disposed on, respectively, the receptacle connector member and the pin connector member, said slot and guide serving as both a guide means when the members are connected and also as an indexing means to prevent the connection of two non-mating connector members.