公制粗螺纹规格M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.4M2.5×0.45M2.6×0.45M3.0×0.5M3.0×0.6M3.5×0.6M4.0×0.7M4.0×0.75M4.5×0.75M5.0×0.8M5.0×0.9M6.0×1.0M7.0×1.0M8.0×1.25M9.0×1.25M10×1.5M11×1.5M12×1.75M14×2.0M16×2.0M18×2.5M20×2.5M22×2.5M24×3.0M27×3.0美制粗螺纹规格（UNC）NO.1-64(1.854)NO.2-56(2.184)NO.3-48(2.515)NO.4-40(2.845)NO.5-40(3.175)NO.6-32(3.505)NO8-32(4.166)NO.10-24(4.826)NO.12-24(5.486)1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-107/8-911-1/8-71-1/4-71-3/8-61-1/2-61-3/4-52-4-1/2标准径0.750.850.951.101.251.351.451.601.751.902.102.202.502.402.903.303.253.804.204.105.006.006.807.808.509.5010.3012.0014.0015.5017.5019.5021.0024.002级牙钻孔径最大最小0.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.2382.5992.4403.0103.4223.3263.8784.3344.1705.1536.1536.9127.9128.6769.67610.44112.21014.21015.74417.74419.74421.25224.2520.7290.8290.9851.0751.2211.3211.4211.5671.7131.8672.0132.1132.4592.2802.8503.2423.1063.6884.1343.9304.9175.9176.6477.6478.3769.37610.10611.83513.83515.29417.29419.29420.75223.752标准径1.551.802.102.302.602.803.403.904.505.106.608.009.4010.8012.2013.6016.5019.5022.2025.0028.2030.8034.0039.5045.202级牙钻孔径最大最小1.5821.8712.1462.3852.6972.8953.533.9624.5975.2576.7318.1539.5511.02312.44612.86818.84019.76122.60625.34928.52431.11534.29039.82745.5931.4251.6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7989.14410.59211.98913.38616.30719.17721.97124.63827.81330.35333.52838.96444.679M30×3.526.5026.77126.211
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