A socket assembly includes a base, two first connection poles on the base and each having a first lateral hole, an assembly block having a central through hole to allow extension of the two first connection poles and pairs of first connection blocks formed on one side of the assembly block to sandwich the side hole. Each first connection block has a first threaded hole. At least one socket device has a threading for connection with an electronic element, a contact for providing power to an electronic element and two pairs of second connection blocks, and securing devices extending through the aligned second threaded hole and the first threaded hole as well as the first lateral hole and the second threaded hole to secure engagement between the at least one socket device and the assembly block.