螺丝牙径及倒角对照表
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RH精度最小~最大(咬合率%)RH精度最小~最大(咬合率%)M1.4×0.321.244-1.263(100-85)41.27-1.294(100-80)0.37M1.7×0.3521.51-1.54(100-80)41.54-1.58(100-75)0.43M2.0×0.421.78-1.82(100-80)41.81-1.85(100-75)0.49M2.3×0.422.08-2.12(100-80)42.11-2.15(100-75)0.49M2.5×0.4522.25-2.29(100-80)42.28-2.33(100-75)0.55M2.6×0.4522.35-2.39(100-80)42.38-2.43(100-75)0.55M3.0×0.532.74-2.78(100-80)52.76-2.81(100-75)0.61M3.5×0.633.18-3.21(100-85)53.2-3.26(100-75)0.73M4.0×0.743.63-3.67(100-85)63.65-3.70(100-85)0.85M5.0×0.844.57-4.62(100-85)64.59-4.66(100-80)0.98M6.0×1.045.45-5.51(100-85)75.48-5.57(100-80)1.22M7.0×1.046.45-6.51(100-85)76.48-6.57(100-80)1.22M8x1.047.45-7.51(100-85)77.48-7.57(100-80)1.22M8X1.2557.31-7.38(100-85)77.34-7.41(100-85)1.53M10×1.049.46-9.52(100-85)79.48-9.57(100-80)1.22M10×1.2559.31-9.38(100-85)79.34-9.41(100-85)1.53M10x1.559.16-9.22(100-90)79.18-9.28(100-85)1.83M12×1.25511.31-11.38(100-85)711.34-11.41(100-85)1.53M12×1.5511.16-11.22(100-90)711.18-11.28(100-85)1.83M12x1.75511.01-11.08(100-90)811.05-11.15(100-85)2.14M12x1.0511.46-11.52(100-85)711.48-11.57(100-80)1.22M14x1.5513.16-13.22(100-90)913.21-13.30(100-85)1.83M14x2.0612.83-12.95(100-90)1012.92-13.04(100-85)2.44M16x2.0614.87-14.95(100-90)1014.92-15.04(100-85)2.44M16x1.5515.16-15.22(100-90)915.21-15.30(100-80)1.83M18x1.5617.17-17.23(100-90)1017.22-17.31(100-85)1.83M18x2.5616.57-16.67(100-90)1116.63-16.78(100-85)3.05M20x1.5619.17-19.23(100-90)1019.22-19.31(100-85)1.83M20x2.5618.57-18.67(100-90)1118.63-18.78(100-85)3.05螺纹规格1级螺纹用下孔径2级螺纹用下孔径 公制迫牙丝攻钻孔径 (非圆丝攻) (单位:mm)C角标准最大最小NO.1-64(1.854)1.551.5821.4250.430.37NO.2-56(2.184)1.801.8711.6950.540.47NO.3-48(2.515)2.102.1461.9410.580.50NO.4-40(2.845)2.302.3852.1570.770.66NO.5-40(3.175)2.602.6972.4870.810.70NO.6-32(3.505)2.802.8952.6420.990.85NO8-32(4.166)3.403.533.3021.080.93NO.10-24(4.826)3.903.9623.6831.311.13NO.12-24(5.486)4.504.5974.3441.391.201/4-205.105.2574.9791.761.525/16-186.606.7316.4011.891.633/8-168.008.1537.7982.151.857/16-149.409.559.1442.422.091/2-1310.8011.02310.5922.682.319/16-1212.2012.44611.9892.952.545/8-1113.6012.86813.3863.212.773/4-1016.5018.84016.3073.63.107/8-919.5019.76119.1773.853.32122.2022.60621.9714.53.881-1/8-725.0025.34924.6385.054.351-1/4-728.2028.52427.8135.024.331-3/8-630.8031.11530.3535.835.031-1/2-634.0034.29033.5285.85.001-3/4-539.5039.82738.96476.04C角标准美制粗螺纹螺距规格(UNC)标准径2级牙钻孔径螺丝攻牙钻孔径和滚造径对照表最大最小M1.0×0.250.750.7850.7290.3M1.1×0.250.850.8850.8290.3M1.2×0.250.950.9850.9850.3M1.4×0.31.101.1421.0750.4M1.6×0.351.251.3211.2210.4M1.7×0.351.351.4211.3210.4M1.8×0.351.451.5211.4210.4M2.0×0.41.601.6791.5670.5M2.2×0.451.751.8381.7130.5M2.3×0.41.901.9791.8670.5M2.5×0.452.102.1382.0130.5M2.6×0.452.202.2382.1130.5M3.0×0.52.502.5992.4590.6M3.0×0.62.402.4402.2800.7M3.5×0.62.903.0102.8500.7M4.0×0.73.303.4223.2420.9M4.0×0.753.253.3263.1060.9M4.5×0.753.803.8783.6880.9M5.0×0.84.204.3344.1341.0M5.0×0.94.104.1703.9301.1M6.0×1.05.005.1534.9171.2M7.0×1.06.006.1535.9171.2M8.0×1.256.806.9126.6471.5M9.0×1.257.807.9127.6471.5M10×1.58.508.6768.3761.8M11×1.59.509.6769.3761.8M12×1.7510.3010.44110.1062.1M14×2.012.0012.21011.8352.4M16×2.014.0014.21013.8352.4M18×2.515.5015.74415.2943.1M20×2.517.5017.74417.2943.1M22×2.519.5019.74419.2943.1M24×3.021.0021.25220.7523.7M27×3.024.0024.25223.7523.7M30×3.526.5026.77126.2114.3规格公制粗螺纹C角标准2级牙钻孔径标准径