Abstract: A clip (20) for securing a heat dissipation device (40) to a CPU (50) includes a body (210) and a bolt (230). The body includes a central pressing portion (214), and a pair of first and second latching portions (211, 213) for engaging with a socket (60). The second latching portion forms a spring portion (215) extending outwardly from a central section thereof. The spring portion defines a through hole (217) with screw threads. The bolt is inserted into the through hole so that a height of the second latching portion can be resiliently adjusted by changing the extent of insertion of the bolt.