超全螺紋攻牙鉆孔直徑和滾造直徑對(duì)照表

1、本表所推選鉆頭孔徑， 是針對(duì)攻牙加工時(shí)，能夠很容易的了解鉆頭直徑，而依據(jù)市售之標(biāo)準(zhǔn)鉆頭所選定的，在使用鉆頭的情況下，由于鉆頭的形狀及尺寸，精度，被鉆孔之材質(zhì)等，對(duì)于所鉆孔的尺寸，精度有很大影響，所以使用本表之鉆孔徑， 若有不當(dāng)之處，應(yīng)實(shí)際狀況適當(dāng)?shù)淖兏@頭直徑，本表依據(jù) 2級(jí)牙制訂。公制粗螺紋規(guī)格標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑最大最小M1.0X0.250.750.7850.729M1.1 X0.250.850.8850.829M1.2X0.250.950.9850.929M1.4X0,31.101.1421.075M1.6X0.351.251.3211.221M1.7X0.351.351.4211.321

2、M1.8X0.351.451.5211.421M2.0X0.41.601.6791.567M2.2X0.451.751.8381.713M2.3X0,41.901.9791.867M2.5X0.452.102.1382.013M2.6X0.452.202.2382.113M3.0X0,52.502.5992.459M3.0X0,62.402.442.280M3.5X0,62.903.0102.850M4.0X0,73.303.4223.242M4.0X0.753.253.3263.106M4.5X0.753.803.8783.688M5.0X0,84.204.3344.134M5.0X0,94

3、.104.1703.930M6.0X 1,05.005.1534.917M7.0X 1,06.006.1535.917M8.0X1.256.806.9126.647M9.0X1.257.807.9127.647M10X1.58.508.6768.376M11X1.59.509.6769.376M12X 1.7510.3010.44110.106M14X2.012.0012.21011.735M16X2.014.0014.21013.835M18X2.515.5015.74415.294M20X2.517.5017.74417.294M22X2.519.5019.74419.294M24X3.0

4、21.0021.2522.752M27X3.024.0024.25223.752M30X3.526.5026.77126.211公制細(xì)螺紋規(guī)格標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑最大最小M1.0X0.20.800.8210.783M1.1 X0.20.900.9210.883M1.2X0.21.001.0210.983M1.4X0.21.201.2210.183M1.6X0.21.401.4211.383M1.7X0,21.451.5001.460M1.8X0,21.601.6211.583M2.0X0.251.751.7851.729M2.2X0.251.951.9851.929M2.3X0.252.052.

5、0612.001M2.5X0.352.202.2212.121M2.6X0.352.202.2462.186M3.0X0.352.702.7212.621M3.5X0.353.203.2213.121M4.0X0,53.503.5993.459M4.5X0,54.004.0993.959M5X0.54.504.5994.459M5.5X0,55.005.0994.959M6.0X0.755.305.3785.188M6.0X0,55.505.5505.400M7.0X0.756.306.37861.88M7.0X0,56.506.55064.00M8.0X 1,07.007.1536.917M

6、8.0X0.757.307.3787.188M8X0.57.507.5207.400M9X1.08.008.1537.917M9 0,758.308.3788.188M10X1.258.808.9128.647M10K 1.09.009.1538.917M10X0.759.309.3789.188M10K0.59.509.5209.400M11X 1.010.0010.1539.917M11X0.7510.3010.37810.188M11X 1.510.5010.67610.376M12X1.2510.8010.91210.647公制細(xì)螺紋規(guī)格標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑最大最小M12X 1.011.

7、0011.15310.917M12X 0.511.5011.52011.4M14K 1.512.5012.67612.376M14K 1.013.0013.15312.917M15K 1.513.5013.67613.376M15K 1.014.0014.15313.917M16K 1.514.5014.67614.376M16K 1.015.0015.15314.917M17X 1.515.5015.67615.376M17X 1.016.0016.15315.917M18K 2.016.0016.21015.835M18K 1.516.5016.67016.376M18K 1.017.00

8、17.15316.917M20K 2.018.0018.21017.835M20K 1.518.5018.67618.376M20K 1.019.0019.15318.917M20K 2.020.0020.21019.835M22X 1.520.5020.67620.376M22X 1.021.0021.15320.917M24K 2.022.0022.21021.835M24K 1.522.5022.67622.376M24K 1.023.0023.15322.917M25K 2.023.0023.21022.835M25K 1.523.5023.67623.376M25K 1.024.00

9、24.15323.917M26K 1.524.5024.67624.376M27X 2.025.0025.21024.835M27X 1.525.5025.67625.376M27X 1.026.0026.15325.917M28K 2.026.0026.21025.835M28K 1.526.5026.67626.376M28K 1.027.0027.15326.917M30K 3.027.0027.25226.752M30K 2.028.0028.21027.835M30K 1.528.5028.67628.376M30K 1.029.0029.15328.917M32X 2.030.00

10、30.21029.835M32X 1.530.5030.67630.376M33K 3.030.0030.25229.752M33K 2.031.0031.21030.835M33K 1.531.5031.37631.376M35K 1.533.5033.67633.376M36K 3.033.0033.25232.752M36K 2.034.0034.21033.835M36K 1.534.5034.67634.376美制細(xì)螺紋規(guī)格(UNF)標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑最大最小番數(shù)牙外徑NO.0-80(1.524)1.251.3051.182NO.1-72(1.854)1.551.6121.474NO

11、.2-64(2.184)1.851.9121.756NO.3-56(2.515)2.102.1972.025NO.4-48(2.845)2.402.4582.271NO.5-44(3.175)2.702.7402.551NO.6-40(3.505)2.903.0222.820NO.8-36(4.166)3.503.6063.404NO.10-32(4.826)4.104.1653.963NO.12-28(5.846)4.604.7244.4961/4 -285.505.5885.3605/16 -246.907.0356.7823/8 -248.508.6368.3827/16 -209.90

12、10.0339.7291/2 -2011.5011.60711.3299/16 -1812.9013.08112.7515/8 -1814.5014.68114.3513/4 -1617.5014.67817.3237/8 -1420.5020.67520.2701 -1223.2023.57123.1141-1/8 -1226.5026.74626.2891-1/4 -1229.5029.92129.4641-3/8 -1232.8033.09632.4641-1/2 -1236.0036.27035.814無屑絲攻鉆孔徑規(guī)格精度等級(jí)RH4.5.6RH7.8RH9M1.0X0.250.860

13、.88-M1.1 X0.250.960.98-M1.2X0.251.061.08-M1.4X0,31.241.25-M1.6X0.351.411.43-M1.7X0.351.511.53-M1.8X0.351.611.63-M2.0X0.41.781.80-M2.2X0.451.951.98-M2.3X0.42.082.10-M2.5X0.452.252.28-M2.6X0.452.351.38-M3.0X0.52.732.75-M3.0X0.63.173.20-M4.0X0.73.623.653.69M5.0X0.84.564.604.64M6.0X 1.05.455.505.55M7.0X

14、 1.06.456.506.55M8.0X 1.257.317.387.44M10X 1.59.189.259.32M10X1.259.319.389.44M12X1.7511.0411.1211.21M12X1.2511.3111.3811.44美制管螺紋規(guī)格(UNEF)標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑最大最小NO.12 -324.704.8264.6231/4 -325.605.6905.4865/16 -327.107.2647.0873/8 -328.708.8658.6617/16 -2810.2010.33810.1351/2 -2811.8011.93811.7099/16 -2813.201

15、3.38613.1325/8 -2414.8014.98614.7323/4 -2017.8017.95817.6787/8 -2021.0021.13320.8531 -2024.0024.30824.028美制 粗螺紋規(guī)格（UNC）標(biāo)準(zhǔn)徑2級(jí)牙鉆孔徑番數(shù)牙外徑最大最小NO.1-64(1.854)1.551.5821.425NO.2-56(2.184)1.801.8711.695NO.3-48(2.515)2.102.1461.941NO.4-40(2.845)2.302.3852.157NO.5-40(3.175)2.602.6972.487NO.6-32(3.505)2.802.8952

16、.642NO.8-32(4.166)3.403.5303.302NO.10-24(4.826)3.903.9623.682NO.12-24(5.846)4.504.5974.3441/4 -205.105.2574.9795/16 -186.606.7316.4013/8 -168.008.1537.9877/16 -149.409.5009.1441/2 -1310.8011.02310.5929/16 -1212.2012.44611.9895/8 -1113.6012.86813.3863/4 -1016.2016.84016.3077/8 -919.5019.76119.1771 -8

17、22.2022.60621.9711-1/8 -725.0025.34924.6381-1/4 -728.2028.52427.8131-3/8 -630.8031.11530.3531-1/2 -634.0034.29033.5281-3/4 -539.5039.82738.9642 -4-1/245.2045.59344.679英制螺紋規(guī)格鉆孔徑硬材軟材W1/8 - 402.652.60W5/32 - 323.253.20W3/16 - 243.753.70W1/4 - 205.105.00W5/16 - 186.606.50W3/8 - 168.007.90W7/16 - 149.409

18、.30W1/2 - 1210.7010.50W9/16 - 1212.3012.00W5/8 - 1113.7013.50W3/4 - 1016.7016.50W7/8 - 919.5019.30W1 - 822.4022.00W1-1/8 - 725.0024.80W1-1/4 - 728.3028.00英制管螺紋規(guī)格標(biāo)準(zhǔn)徑鉆孔徑最大最小PS1/16 -286.506.6326.490PS1/8 -288.508.6378.495PS1/4 - 1911.4011.54911.341PS3/8 - 1915.0015.05414.846PS1/2 - 1418.5018.77318.489P

19、S3/4 - 1424.0024.25923.975PS1 - 1130.2030.47130.111PS1-1/4 -1138.8039.13238.772PS1-1/2 -1144.8045.02544.665PS2 - 1156.5056.83656.476英制管螺紋規(guī)格標(biāo)準(zhǔn)徑有效牙部之長(zhǎng)度（最?。┲兄嘎菅纼?nèi)徑標(biāo)準(zhǔn)長(zhǎng)度（最?。┲兄嘎菅纼?nèi)徑使用絞刀時(shí)不用絞刀時(shí)PT1/16 -286.106.26.2446.384PT1/8 -288.108.28.2498.388PT1/4 -1910.701110.96211.174PT3/8 -1914.2014.514.44814.658PT1/

20、2 -1417.601817.97918.263PT3/4 -1423.0023.523.37823.663Pt1 -1129.0029.529.45929.822PT1-1/4 -1137.503837.97638.339PT1-1/2 -1143.404443.86944.232Pt2 -1154.9055.555.41255.844美制螺紋滾造徑規(guī)格鉆孔徑NPTNPS使用絞刀時(shí)不用絞刀時(shí)1/16 -276.16.256.351/8 -278.338.438.741/4 -1810.7211.1311.133/8 -1814.2714.2714.681/2 -1417.4817.8618.

21、263/4 -1422.6323.0123.421 -11-1/228.5828.9829.361-1/4-11-1/237.3137.6938.11-1/2-11-1/243.6644.0444.452 -11-1/255.5855.9656.36英制螺紋滾造徑規(guī)格滾造徑W 3/16 - 244.08 - 4.05W 1/4 - 205.51 - 5.46W 5/16 - 187.01 - 6.95W 3/8 - 168.48 - 8.41W 7/16 - 149.92 - 9.85W 1/2 - 1211.31 - 11.24W 9/16 -1212.89 - 12.82公制螺紋規(guī)格滾造徑

22、M3.0X0,62.56 2.53M3.5X0,63.06 3.03M4.0X0,73.49 3.45M4.0XD.753.45 3.41M4.5X0.753.96 3.92M5.0X0.84.43 4.38M5.0X0.94.36 4.31M6.0X1.05.30 5.25M7.0X1.06.30 6.25M8.0X1.07.28 - 7.23M8.0X1.257.12 - 7.07M9.0X1.258.12 - 8.07M10X 1.259.10 - 9.04M10X 1.58.97 - 8.91M11X 1.59.97 - 9.91M12X 1.510.92 - 10.87M12X 1.7510.79 - 10.73M14X2.012.63 - 12.56M16X2.014.63 - 14.56M18X2.516.31 - 16.23M20X 2.518.31 - 18.23M22X 2.520.31 - 20.23針車用螺紋規(guī)格(UNC)滾造徑SM 1/8 402.735 -2.688SM 1/8 442.769 -2.722SM 9/64