美制粗螺纹

美美制制粗粗螺螺纹纹美美制制细细螺螺纹纹 规格 （UNC) 标准径 2级牙钻孔径 规格 （UNF) 标准径 2级牙钻孔径 最大最小最大 NO.1-64(1.854)1.551.5821.425NO.0-80(1.524)1.251.305 NO.2-56(2.184)1.801.8711.695NO.1-72(1.854)1.551.612 NO.3-48(2.515)2.102.1461.941NO.2-64(2.184)1.851.912 NO.4-40(2.845)2.302.3852.157NO.3-56(2.515)2.102.197 NO.5-40(3.175)2.602.6972.487NO.4-48(2.845)2.402.458 NO.6-32(3.505)2.802.8952.642NO.5-44(3.175)2.702.740 NO.8-32(4.166)3.403.5303.302NO.6-40(3.505)2.903.022 NO.10-24(4.826)3.903.9623.683NO.8-36(4.166)3.503.606 NO.12-24(5.486)4.504.5974.344NO.10-32(4.826)4.104.165 1/4 -205.105.2574.979NO.12-28(5.846)4.604.724 5/16 -186.606.7316.4011/4-285.505.588 3/8 -168.008.1537.7985/16-246.907.035 7/16 -149.409.5509.1443/8-248.508.636 1/2 -1310.8011.02310.5927/16-209.9010.033 9/16 -1212.2012.44611.9891/2-2011.5011.607 5/8 -1113.6012.86813.3869/16-1812.9013.081 3/4 -1016.5018.84016.3075/8-1814.5014.681 7/8 -919.5019.76119.1773/4-1617.5017.678 1-822.2022.60621.9717/8-1420.5020.675 1-1/8-725.0025.34924.6381-1223.2023.571 1-1/4-728.2028.52427.8131-1/8-1226.5026.746 1-3/8-630.8031.11530.3531-1/4-1229.5029.921 1-1/2-634.0034.29033.5281-3/8-1232.8033.096 1-3/4-539.5039.82738.9641-1/2-1236.036.271 2-4-1/245.2045.59344.679 美美制制迫迫牙牙丝丝攻攻钻钻孔孔径径美美制制特特细细螺螺纹纹 规格 精度等级 规格 （UNEF) 标准径 2级牙钻孔径 G4-G6G7-G8G9最大 NO.2-56UNC1.94-NO.12-324.704.826 NO.3-482.23-1/4-325.605.690 NO.4-402.50-5/16-327.107.264 NO.5-402.83-3/8-328.708.865 NO.6-323.07-7/16-2810.2010.338 NO.8-323.733.77-1/2-2811.8011.938 NO.10-244.244.30-9/16-2413.2013.386 NO.12-244.904.96-5/8-2414.8014.986 1/4-20-5.72-3/4-2017.8017.958 5/16-18-7.24-7/8-2021.0021.133 3/8-16-8.748.811-2024.0024.308 7/16-14-10.2010.30 美美制制管管螺螺纹纹 1/2-1311.2711.82 NO.2-64UNF1.97- 规格 钻孔径 NO.3-562.27-NPT NO.4-482.56-使用绞刀时不用绞刀时 NO.5-442.86-1/16-276.106.25 NO.6-403.16-1/8-278.338.43 NO.8-363.78-1/4-1810.7211.13 NO.10-324.394.43-3/8-1814.2714.27 NO.12-284.995.04-1/2-1417.4817.86 1/4-285.855.90-3/4-1422.6323.01 5/16-247.367.41-1-11-1/228.5828.98 3/8-24-9.00-1-1/4-11-1/237.3137.69 7/16-20-10.4810.541-1/2-11-1/243.6644.04 1/2-20-12.0712.132-11-1/255.5855.96 英英制制电电器器螺螺纹纹 规格钻孔径 2BA4.0-4.2 3BA 4BA3.0-3.2 5BA2.7-2.8 6BA2.4-2.5 最小 1.182 1.474 1.756 2.025 2.271 2.551 2.820 3.404 3.963 4.496 5.360 6.782 8.382 9.729 11.329 12.751 14.351 17.323 20.270 23.114 26.289 29.464 32.639 35.814 最小 4.623 5.486 7.087 8.661 10.135 11.709 13.132 14.732 17.678 20.85