8.8,10.9,12.9，GB5782半牙高强度螺栓，GB5783高强度全牙螺栓，GB5785半牙细牙螺栓，GB5786全牙细牙螺栓，GB6170高强度螺母，GB6171高强度细牙螺母，GB6175加厚高强度螺母，SH3404高强度大六角螺母，GB901高强度B型双头，HG20634高强度全螺纹螺柱，美标UNC螺栓，美标螺母