An electrical connector for electrically connecting an IC package to a substrate, includes an insulating housing (21), a stiffener (20) located on one side of the insulating housing (21) and a load plate (22) assembled to the stiffener (20) and being rotated between an opened position and a closed position, the stiffener (20) includes a first end (203) and an extending portion (208) extending upwardly and then horizontally in a direction far away from the insulating housing (21) from the first end (203), the extending portion (208) includes a receiving hole (209), the load plate (22) includes a body portion (220) and a hook (223) extending from on end of the body portion (220), the hook (223) is assembled to the receiving hole (209) and interlocks with the extending portion (208) to position the load plate (22) on the stiffener (20).