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1、螺絲攻下孔徑對照表公制粗牙螺紋(((M(MMM))))公制細牙螺紋(((M(MMM))))英制粗牙螺紋(((W(WWW))))美制粗牙螺紋(((UNC(UNCUNC)UNC)))美制細牙螺紋(((UNF(UNFUNF)UNF)))下孔徑(%)下孔徑(%)下孔徑(%)下孔徑(%)下孔徑(%)規(guī)格下孔徑規(guī)格下孔徑規(guī)格下孔徑規(guī)格下孔徑規(guī)格下孔徑60%100%60%100%60%100%60%100%60%100%M1 ×0.250.750.840.73M1×0.20.800.870.78W1/16-601.20
2、1.261.05Nr.1-641.501.601.42Nr.0-801.301.321.18M1.1 ×0.250.850.940.83M1.1×0.20.900.970.88W3/32-481.801.971.70Nr.2-561.801.891.69Nr.1-721.601.621.47M1.2 ×0.250.951.040.93M1.2×0.21.001.070.98W1/8-402.602.692.36Nr.3-482.102.171.94Nr.2-641.901.931.75M1.4×0.31.1
3、01.211.08M1.4×0.21.201.271.18W5/32-323.103.362.95Nr.4-402.302.432.16Nr.3-562.102.222.02M1.6 ×0.351.251.371.22M1.6×0.21.401.471.38W3/16-243.603.953.41Nr.5-402.602.762.49Nr.4-482.402.502.27M1.7 ×0.351.351.471.32M1.8×0.21.601.671.58W7/32-244.504.744.20Nr.6-32
4、2.752.992.65Nr.5-442.702.802.55M1.8 ×0.351.451.571.42M2×0.251.751.841.73W1/4-205.105.374.72Nr.8-323.503.653.31Nr.6-403.003.092.82M2 ×0.41.601.741.57M2.2×0.251.952.071.93W5/16-186.506.856.13Nr.10-243.804.143.68Nr.8-363.503.713.40M2.2 ×0.451.751.911.71M2.5×0
5、.352.152.272.12W3/8-167.908.317.49Nr.12-244.504.804.34Nr.10-324.104.313.97M2.3 ×0.41.902.041.87M3×0.352.652.772.62W7/16-149.309.728.791/4-205.105.534.98Nr.12-284.704.904.50M2.5 ×0.452.052.212.01M3.5×0.353.153.273.12W1/2-1210.5011.079.995/16-186.507.026.411
6、/4-285.505.765.37M2.6 ×0.452.152.312.11M4×0.53.503.683.46W9/16-1212.0012.6611.583/8-167.908.497.815/16-246.907.256.79M3 ×0.52.502.682.46M4.5×0.54.004.183.96W5/8-1113.5014.1012.927/16-149.309.939.153/8-248.508.848.38M3 ×0.62.402.612.35M5×0.54.504.684.46W3
7、/4-1016.5017.1015.801/2-1310.8011.4310.587/16-209.9010.299.74M3.5 ×0.62.903.112.85M5.5×0.55.005.184.96W7/8-919.2520.0618.619/16-1212.2012.9112.001/2-2011.5011.8811.33M4 ×0.73.303.553.24M6×0.55.505.685.46W1-822.0022.9621.335/8-1113.5014.3813.389/16-1812.90
8、13.3712.76M4 ×0.753.253.513.19M6×0.755.255.515.19W11/8-724.7525.7923.933/4-1016.5017.4016.305/8-1814.5014.9614.35M4.5 ×0.753.754.013.69M7×0.756.256.516.19W11/4-727.7528.9627.107/8-919.5020.3919.173/4-1617.50
