拧紧力矩N.m螺栓称直径mm6810121416182022242730364248螺栓强度等级4.64~510~1220~2535~4454~6988~108118~147167~206225~284294~370441~519529~666882~10781372~16662058~24505.65~712~1525~3144~5469~88108~137147~186206~265184~343370~441539~686666~8331098~13721705~27362334~25486.66~814~1829~3949~6483~98127~157176~216245~314343~431441~539637~784784~9801323~16771960~25483087~38228.89~1222~2944~5876~102121~162189~252260~347369~492502~669638~850933~12441267~16892214~29523540~47215311~708110.913~1429~3564~76108~127176~206274~323372~441529~637725~862921~10981372~16171666~19602744~32834263~50966468~774212.915~2037~5074~88128~171204~273319~425489~565622~830847~11291096~14351574~20992138~28503736~49815974~79668962~11949