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1、A外六角1螺栓S(mm)螺栓直径M(mm)DIN267性能等级(螺栓强度等级)3.65-66.9&810.912.9Fv(N)Ma(Nm)Fv(N)Ma(Nm)Fv(N)Ma(Nm)Fv(N)Ma(Nm)Fv(N)Ma(Nm)Fv(N)M4M22550.13450.157100.38350.351,1700.51,4155M2.54850.266550.351,3100.711,5500.832,1801.182,6205.5M36300.371,0500.621,7000.992,2501.33,1501.93,
2、8006M3.58500.571,4000.952,2501.53,00024,2502.95,1007M41,1000.851,8501.42,9002.33,90035,7504.46,7008、9M51,8001.73,0002.84,8004.56,4005.99,4008.711,00010M62,5502.94,2004.86,7507.79,0001013,2001515,50013、14M84,65077,7501212,4001916,5002524,3003628,40015、17M107,40
3、01412,3002319,7003726,300493&7007245,20019、21M1210,800241&000402&800653&4008556,50012566,00022、23M1414,8003924,7006439,50010552,50013577,50020090,50024、26M1620,4005934,0009854,50015572,500210107,000310125,00027M1824,8008141,30013566,00021591,000300129,00043015
4、2,00030M2031,90011553,00019085,000305117,000425166,000610195,00032M2239,90015566,500260106,000415146,00058020&000820244,00036M2445,90020076,500330122,00053016&000730240,0001,050281,00041M2780,500295100,000490161,000780222,0001,100316,0001,550369,00046M3073,500
5、395122,000660196,0001,050269,0001,450384,0002,100449,00050M3391,500540153,000900244,0001,450326,0001,90045&0002,700550,00055M36107,000690179,0001,150287,0001,850382,0002,450537,0003,450645,00060M39129,000900215,0001,500345,0002,400460,0003,200646,0004,500775,0
6、0065M4214&0001,100247,0001,850395,0002,950526,0003,950740,0005,55088&00070M45173,0001,400289,0002,300462,()0()3,700616,0004,950867,0006,9501,050,00075M48195,0001,700325,0002,800520,0004,450693,0005,950974,000&400:,150,000,80M52234,0002,150390,0003,600624,0005,
7、750832,0007,6501,169,00010,8001,403,00085M56270,0002,700450,0004,500719,0007,150959,0009,5501,349,00013,4001,61&00090M60315,0003,350525,0005,550841,000&9001,121,00011,9001,576,00016,7001,892,00095M64357,0004,000595,0006,700951,()0()10,7001,26&00014,3001,784,00
8、021,1002,140,000六角或外六方两斗行边距离Fv-螺栓预紧力Ma-螺栓扭矩•返回上层按下列公式确定最小破坏扭矩:式中・Wg=x/16•d；.iaZ=X•<7i其中・Ma・一jft小破坏扭矩（见表2）；rB——扭转强度；IFr——抗扭截面模数IdlM—外螺纹小径最小ffbn—抗拉强度，X——强度比r/ab（见发1）.性能尊级8.89.810.912
