This is a special non-sert® developed together with SANYO DENKI CO., Ltd. for SANYO DENKI FAN “SAN ACE.” Small Pan Head type and 120° Flat Head type. These SY non-sert® are recommended by SANYO DENKI Co., Ltd for assembling SAN ACE. Please refer to SANYO DENKIʼs technical data for fastening torque & hole dia information.