公称直径D、d螺距P中径D2或d2小径D]或d]第一系列第二系列第三系列粗牙细牙Ml0.250.8380.7290.20.8700.783M1.10.250.9380.8290.20.9700.883M1.20.251.0380.9290.21.0700.983M1.40.31.2051.0750.21.2701.183M1.60.351.3731.2210.21.4701.383M1.80.351.5731.4210.21.6701.583M20.41.7401.5670.251.8381.729M2.20.451.9081.7130.252.0381.929M2.50.452.2082.0130.352.2732.121M30.52.6752.4590.352.7732.621M3.5(0.6)3.1102.8500.353.2733.121M40.73.5453.2420.53.6753.459M4.50.754.0133.6880.54.1753.959M50.84.484.1340.54.6754.459M5.50.55.1754.959M615.3504.9170.755.5135.188(0.5)5.6755.459M716.3505.9170.756.5136.188(0.5)6.6756.499M81.257.1886.64717.3506.9170.757.5137.188(0.5)7.6757.459公称直径D、d螺距P中径D?或d2小径D,或d,第一系列第二系列第三系列粗牙细牙M9(1.25)8.1887.64718.3507.9170.758.5138.188(0.5)8.6758.459M101.59.0268.3761.259.1888.64719.3508.9170.759.5139.188(0.5)9.6759.459M11(1.5)10.0269.376110.3509.9170.7510.51310.188(0.5)10.67510.459M121.7510.86310.1061.511.02610.3761.2511.18810.647111.35010.9170.7511.51311.188(0.5)11.67511.459M14212.70111.8351.513.02612.376(1.25)13.18812.674113.35012.917(0.75)13.51313.188(0.5)13.67513.459M151.514.02613.376(1)14.35013.917M16214.70113.8351.515.02614.376115.35014.917(0.75)15.51315.188(0.5)15.67515.459M171.516.02615.376(1)16.35015.917M182.521.51(0.75)(0.5)公称直径D、d螺距P中径D?或d?.小径D］或d,第一系列第二系列第三系列粗牙细牙M202.518.37617.294218.70117.8351.519.02618.376119.35018.917(0.75)19.51319.188(0.5)19.67519.459M222.520.37619.294220.70119.8351.521.02620.376121.35020.917(0.75)21.51321.188(0.5)21.67521.459M24322.05120.752222.70121.8351.523.02622.376123.35022.917(0.75)23.51323.188M25223.70122.8351.524.02623.376(1)24.35023.917M261.525.02624.376M27325.05123.752225.70124.8351.526.02625.376126.35025.917(0.75)26.51326.188M28226.70125.8351.527.02626.376127.35026.917M303.527.72726.211(3)28.05126.752228.70127.8351.529.02628.376129.35028.917(0.75)29.51329.188M32230.70129.8351.531.02630.376M333.530.72729.211(3)31.05129.752231.70130.8351.532.02631.376(1)32.35031.917(0.75)32.51332.188公称直径D、d螺距P中径D?或d2小径D］或d,第一系列第二系列第三系列粗牙细牙M351.534.02633.376M36433.40231.670334.05132.752234.70133.8351.535.02634.376⑴35.35034.917M381.537.02636.376M39436.40234.670337.05135.752237.70136.8351.538.02637.376⑴38.35037.917M40(3)38.05136.752(2)38.70137.8351.539.02638.376M424.539.07737.129(4)39.40237.670340.05138.752240.70139.8351.541.02640.376⑴41.35040.917M454.542.07740.129(4)42.40240.670343.05141.752243.70142.8351.544.02643.376(1)44.35043.917M48544.75242.587(4)45.40243.670346.05144.752246.70145.8351.547.02646.376(1)47.35046.917M50(3)48.05146.752(2)48.70147.8351.549.02648.376M52548.75246.587(4)49.40247.670350.05148.752250.70149.8351.551.02650.376(1)51.35050.917公称直径D、d螺距P中径D?或d2小径D］或d,第一系列第二系列第三系列粗牙细牙M55(4)52.40250.670⑶53.05151.752253.70152.8351.554.02653.376M565.552.42850.046453.40251.670354.05152.752254.70153.8351.555.02654.376⑴55.35054.917M58(4)55.40253.670⑶56.05154.752256.70155.8351.557.02656.376M60(5.5)56.42854.046457.40255.670358.05156.752258.70157.8351.559.02658.376⑴59.35058.917M62(4)59.40257.670⑶60.05158.752260.70159.8351.561.02660.376M64660.10357.505461.40259.670362.05160.752262.70161.8351.563.02662.376⑴63.35062.917M65(4)62.40260.670⑶63.05161.752263.70162.8351.564.02663.376M68664.10361.505465.40263.670366.05164.752266.70165.8351.567.0...
