Abstract: A female screw rod is constructed to include a female screw rod adapted for mounting in a mounting hole of a motherboard to support an object above the motherboard, the female screw rod having an axially extended screw hole for the installation of a screw, and a quick-release cap connectable to the female screw rod to block the screw hole, the quick-release cap having a downwardly extended barrel-like coupling portion for capping on the female screw rod.

Abstract: A female screw rod is constructed to include a female screw rod adapted for mounting in a mounting hole of a motherboard to support an object above the motherboard, the female screw rod having an axially extended screw hole for the installation of a screw, and a quick-release cap connectable to the female screw rod to block the screw hole, the quick-release cap having a downwardly extended barrel-like coupling portion for capping on the female screw rod.

Abstract: A female screw device is constructed to include a female screw rod adapted for mounting in a mounting hole of a motherboard to support an object above the motherboard, the female screw rod having an axially extended screw hole for the installation of a screw, and a quick-release cap adapted for fastening to the female screw rod to close the screw hole for enabling the female screw rod to be installed in a mounting hole of a motherboard by a SMT automatic machine, the quick-release cap having a cap body and a plurality of springy retaining arms adapted for fastening to the screw hole of the female screw rod to secure the cap body to the female screw rod to block up the screw hole.

Abstract: An electronic retainer for preventing electromagnetic interference and capable of being absorbed mechanically is disclosed. The retainer has a through hole therein, and a temperature tolerant rubber piece is matched in the through hole. The temperature tolerant rubber piece is filled in the through hole of the retainer so that the retainer has a solid center. Therefore, the retainer can be absorbed by a robotic arm so that material-taking and assembly of the retainer is performed automatically. Thus, the manufacturing process is rapid and mass production can be achieved. Moreover, a screw passes through the through hole of the retainer and the fixing hole of the circuit board so that the retainer is fixed to a casing. By contacting of the screw 30 with the retainer 10, the circuit board may be electrically grounded through the tin ring, retainer, screw and the casing for achieving the object of preventing electromagnetic interference and thus the object of electromagnetic shielding is achieved.

Abstract: A stud assembly structure of a computer mother board capable of being assembled by an automatic machine includes a screw hole and a quick detaching cover. The stud is provided to be inserted in each assembling hole in a mother board and a penetrating hole is installed therein. A circular buckling trench is installed at an outer periphery of the stud. The quick detaching cover has a cover piece for covering an opening of the screw hole of the stud. The periphery of the cover piece being formed with elastic clamping pieces extending toward the stud for clamping the stud so that the quick detaching cover is detachably assembled to the stud temporarily. Therefore, the stud with quick detaching cover is provided to a SMT automatic machine for absorbing the cover piece by vacuum for picking the stud to a predetermined position. Then, the stud is inserted into the assembling hole. Then, the stud is released so as to complete the assembly work. Therefore, the whole assembly work is quick, accurate and quick.