Socket connector having structure for preventing distortion

A socket connector for receiving a component having a plurality of contacts, comprising:

• a base arranged in a first plane defined by a lengthwise and a lateral direction and defining a plurality of passageways for receiving a plurality of terminals therein;
• a cover arranged in a second plane and slidably mounted on the base, the cover defining a plurality of channels provided in a one-to-one corresponding relationship with the passageways of the base for receiving the contacts;
• an actuator formed on a front portion of the base and the cover for driving the cover to slide on the base between a contact insert position and an engagement position in said lengthwise direction;
• a lock portion formed on a rear portion of one of the base and the cover opposite to the actuator and protruding along a horizontal direction out of a side edge of the corresponding one of the first and the second planes;
• a recess defined in a side edge of the other one of the base and the cover for receiving the lock portion to fasten two planes tightly;
• wherein the lock portion comprises a pair of substantially T-shaped portions formed on a rear portion of the cover extending towards the base with a pair of protrusions extending from two sides respectively;
• and
• wherein the recess is formed in T-shaped on a rear portion of the base for receiving the lock portion therein.