螺栓和螺钉通孔(摘自 GB/T5277— 1985)螺纹规格 d通孔 dh系列精 装配中等装配粗 装 配M1M1
5M 3M3
8M6M7M86
697810M10M12M1410
513151113
5M161717
5M18M20192120222124M22M24M27232528242630262832M30M33M36M39313437403336364235384245M42M45M48434650454852485256M52M56M60545862566266626670M64M68M72667074707478747882M76M80M85788287828691869196M90M95M100939810496101107101107112M105M 110M115109114119112117122117122127M120M125M130124129134127132137132137144M140M150144155147158155165