公制细螺纹规格标准径2级螺纹内径上限下限规格公制标准螺纹标准径1级-2级螺纹内径上限下限M1*0.25M1.1*0.25M1.2*.25M1.4*0.3M1.6*0.35M1.7*0.35M1.8*0.35M2*0..4M2.2*0.45M2.3*0.4M2.5*0.45M2.6*0.45M3*0.5*M3*0.6M3.5*0.6M4*0.7*M4*0.75M4.5*0.75M5*0.8*M5*0.9M6*1M7*1M8*1.25M9*1.25M10*1.5M11*1.50.750.850.951.11.251.351.451.61.751.92.12.22.52.42.93.33.253.84.24.1566.87.88.59.50.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.2382.5992.443.013.4223.3263.8784.3344.175.1536.1536.9127.9128.6769.6760.7290.8290.9291.0751.2211.3211.4211.5761.7131.8672.0132.1132.4592.282.853.2423.1063.6884.1343.934.9175.9176.77.78.3769.376M1*0.20M1.1*0.20M1.2*0.20M1.4*0.20M1.6*0.20*M1.7*0.20M1.8*0.20M2*0.25M2.2*0.25*M2.3*0.25M2.5*0.35*M2.6*0.35M3*0.35M3.5*0.35M4*0.50M4.5*0.50M5*0.50M5.5*0.50M6*0.75*M6*0.5M7*0.75*M7*0.50M8*1.0M8*0.75*M8*0.50M9*1.00.80.911.21.41.451.61.751.952.052.1212.22.73.23.4.555.35.56.36.577.37.580.8210.9211.0211.2211.4211.51.6211.7851.9852.0162.2212.2462.7213.2213.5994.0994.5995.0995.3785.556.3786.557.1537.3787.528.1530.7830.8830.9831.1831.3831.461.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.46.1886.46.9177.1887.47.917M12*1.75M14*2M16*2M18*2.5M20*2.5M22*2.5M24*3M27*3M30*3.5M33*3.5M36*4M39*4M42*4.5M45*4.5M48*510.3121415.517.519.5212426.529.5323537.0.310.44112.2114.2115.74417.74419.74421.25224.25226.77129.77132.2735.2737.77940.77943.27910.106M9*0.758.38.3788.18811.835M10*1.258.88.9128.713.83515.24917.24919.24920.75223.75226.21129.21131.6734.6737.12940.12942.587附* 号螺纹自学1968年3月删除
