螺纹下孔径表(标准)
各种标准螺纹螺距底孔
60%100%60%100%60%100%60%100%60%100% M1 ×0.250.750.840.73M1 ×0.20.800.870.78W1/16-60 1.20 1.26 1.05Nr.1-64 1.50 1.60 1.42Nr.0-80 1.30 1.32 1.18 M1.1 ×0.250.850.940.83M1.1 ×0.20.900.970.88W3/32-48 1.80 1.97 1.70Nr.2-56 1.80 1.89 1.69Nr.1-72 1.60 1.62 1.47 M1.2 ×0.250.95 1.040.93M1.2 ×0.2 1.00 1.070.98W1/8-40 2.60 2.69 2.36Nr.3-48 2.10 2.17 1.94Nr.2-64 1.90 1.93 1.75 M1.4×0.3 1.10 1.21 1.08M1.4 ×0.2 1.20 1.27 1.18W5/32-32 3.10 3.36 2.95Nr.4-40 2.30 2.43 2.16Nr.3-56 2.10 2.22 2.02 M1.6 ×0.35 1.25 1.37 1.22M1.6 ×0.2 1.40 1.47 1.38W3/16-24 3.60 3.95 3.41Nr.5-40 2.60 2.76 2.49Nr.4-48 2.40 2.50 2.27 M1.7 ×0.35 1.35 1.47 1.32M1.8 ×0.2 1.60 1.67 1.58W7/32-24 4.50 4.74 4.20Nr.6-32 2.75 2.99 2.65Nr.5-44 2.70 2.80 2.55 M1.8 ×0.35 1.45 1.57 1.42M2 ×0.25 1.75 1.84 1.73W1/4-20 5.10 5.37 4.72Nr.8-32 3.50 3.65 3.31Nr.6-40 3.00 3.09 2.82 M2 ×0.4 1.60 1.74 1.57M2.2 ×0.25 1.95 2.07 1.93W5/16-18 6.50 6.85 6.13Nr.10-24 3.80 4.14 3.68Nr.8-36 3.50 3.71 3.40 M2.2 ×0.45 1.75 1.91 1.71M2.5 ×0.35 2.15 2.27 2.12W3/8-167.908.317.49Nr.12-24 4.50 4.80 4.34Nr.10-32 4.10 4.31 3.97 M2.3 ×0.4 1.90 2.04 1.87M3 ×0.35 2.65 2.77 2.62W7/16-149.309.728.791/4-20 5.10 5.53 4.98Nr.12-28 4.70 4.90 4.50 M2.5 ×0.45 2.05 2.21 2.01M3.5 ×0.35 3.15 3.27 3.12W1/2-1210.5011.079.995/16-18 6.507.02 6.411/4-28 5.50 5.76 5.37 M2.6 ×0.45 2.15 2.31 2.11M4 ×0.5 3.50 3.68 3.46W9/16-1212.0012.6611.583/8-167.908.497.815/16-24 6.907.25 6.79 M3 ×0.5 2.50 2.68 2.46M4.5 ×0.5 4.00 4.18 3.96W5/8-1113.5014.1012.927/16-149.309.939.153/8-248.508.848.38 M3 ×0.6 2.40 2.61 2.35M5 ×0.5 4.50 4.68 4.46W3/4-1016.5017.1015.801/2-1310.8011.4310.587/16-209.9010.299.74 M3.5 ×0.6 2.90 3.11 2.85M5.5 ×0.5 5.00 5.18 4.96W7/8-919.2520.0618.619/16-1212.2012.9112.001/2-2011.5011.8811.33 M4 ×0.7 3.30 3.55 3.24M6 ×0.5 5.50 5.68 5.46W1-822.0022.9621.335/8-1113.5014.3813.389/16-1812.9013.3712.76 M4 ×0.75 3.25 3.51 3.19M6 ×0.75 5.25 5.51 5.19W11/8-724.7525.7923.933/4-1016.5017.4016.305/8-1814.5014.9614.35 M4.5 ×0.75 3.75 4.01 3.69M7 ×0.75 6.25 6.51 6.19W11/4-727.7528.9627.107/8-919.5020.3919.173/4-1617.5018.0217.33 M5 ×0.8 4.20 4.48 4.13M8 ×0.757.257.517.19W13/8-630.2031.6729.501-822.2523.3421.967/8-1420.2521.0520.26 M5 ×0.9 4.10 4.70 4.66M8 ×1.07.007.35 6.92W11/2-633.5034.8532.6811/4-728.0029.3927.821-1223.2524.0323.11 M6 ×1.0 5.00 5.35 4.92M9 ×1.08.008.357.92W15/8-535.5037.3734.7713/8-631.0032.1830.3411/8-1226.5027.2026.28 M7 ×1.0 6.00 6.35 5.92M10 ×0.759.259.519.19W13/4-538.5040.5537.9411/2-634.5035.3533.5211/4-1229.5030.3829.46 M8 ×1.25 6.807.19 6.65M10 ×1.09.009.358.92W17/8-4.541.5043.2940.4013/4-539.0041.1538.9513/8-1232.5033.3532.63 M9 ×1.257.808.197.65M10 ×1.258.759.198.65W2-4.544.5046.4643.572-4.545.0047.1344.6911/2-1236.0036.7335.81 M10 ×1.58.509.038.38M11 ×1.010.0010.359.92M11 ×1.59.5010.039.38M12 ×0.7511.2511.5111.19M12 ×1.7510.2010.8610.11M12 ×1.011.0011.3510.92M14 ×2.012.0012.7011.83M12 ×1.2510.7511.1910.65M16 ×2.014.0014.7013.83M12 ×1.510.5011.0310.38M18 ×2.515.5016.3815.29M14 ×1.013.0013.3512.9260%100%60%100%60%100% M20 ×2.517.5018.3817.29M14 ×1.2512.7513.1912.65W1/16-60 1.40 1.42 1.32Nr.1-64 1.70 1.73 1.64Nr.0-80 1.40 1.42 1.35 M22 ×2.519.5020.3819.29M14 ×1.512.5013.0312.38W3/32-48 2.10 2.18 2.04Nr.2-56 2.00 2.04 1.94Nr.1-72 1.70 1.74 1.66 M24 ×3.021.0022.0520.75M15 ×1.014.0014.3513.92W1/8-40 2.85 2.93 2.77Nr.3-48 2.25 2.34 2.23Nr.2-64 2.00 2.06 1.97 M27 ×3.024.0025.0523.75M15 ×1.2513.7514.1913.65W5/32-32 3.55 3.66 3.46Nr.4-40 2.55 2.64 2.50Nr.3-56 2.30 2.37 2.27 M30 ×3.526.5027.7326.21M15 ×1.513.5014.0313.38W3/16-24 4.25 4.36 4.08Nr.5-40 2.90 2.97 2.83Nr.4-48 2.60 2.67 2.56 M33 ×3.529.5030.7329.21M16 ×1.015.0015.3514.92W7/32-24 5.05 5.15 4.88Nr.6-32 3.15 3.25 3.08Nr.5-44 2.90 2.99 2.86 M36 ×4.032.0033.4031.67M16 ×1.2514.7515.1914.65W1/4-20 5.75 5.86 5.54Nr.8-32 3.80 3.91 3.74Nr.6-40 3.20 3.30 3.16 M39 ×4.035.0036.4034.67M16 ×1.514.5015.0314.38W5/16-187.307.407.03Nr.10-24 4.35 4.48 4.25Nr.8-36 3.85 3.94 3.78 M42 ×4.537.5039.0837.13M18 ×1.017.0017.3516.92W3/8-168.808.928.51Nr.12-24 5.00 5.14 4.91Nr.10-32 4.45 4.57 4.40 M45 ×4.540.5042.0840.13M18 ×1.2516.7517.1916.65W7/16-1410.3010.429.951/4-20 5.75 5.94 5.66Nr.12-28 5.05 5.19 4.99 M48 ×5.043.0044.7542.59M18 ×1.516.5017.0316.38W1/2-1211.7511.8911.345/16-187.307.487.171/4-28 5.95 6.06 5.86 M52 ×5.047.0048.7546×59M18 ×2.016.0016.7015.833/8-168.809.018.675/16-247.407.597.36 M56 ×5.550.5052.4350.05M20 ×1.019.0019.3518.927/16-1410.3010.5210.133/8-249.009.188.95 M60 ×5.554.5056.4354.05M20 ×1.2518.7519.1918.651/2-1311.8012.0711.641/2-2012.1012.2912.01 M64 ×658.0060.1057.50M20 ×1.518.5019.0318.38M68 ×662.0064.1061.50M20 ×2.018.0018.7017.83PT(Rc)PS(Pp)PF(G)M72 ×666.0068.1065.50M22 ×1.021.0021.3520.92下孔径下孔径下孔径M76 ×670.0072.1069.50M22 ×1.2520.7521.1920.651/16-28 6.30 6.50 6.70英时英时//公 对照表无屑丝攻美制细牙螺纹无屑丝攻美制细牙螺纹((UNFUNF))规格规格规格规格公制粗牙螺纹公制粗牙螺纹((M)下孔径(%)下孔径规格公制细牙螺纹公制细牙螺纹((M)下孔径下孔径(%)无屑丝攻英制粗牙螺纹无屑丝攻英制粗牙螺纹((W)规格规格英制管牙螺纹无屑丝攻美制粗牙螺纹无屑丝攻美制粗牙螺纹((UNCUNC))针车牙螺纹针车牙螺纹((SMSM))英制粗牙螺纹英制粗牙螺纹((W)下孔径下孔径(%)规格美制细牙螺纹美制细牙螺纹((UNFUNF))下孔径下孔径(%)规格螺丝攻下孔径对照表下孔径下孔径(%)下孔径下孔径(%)下孔径下孔径(%)美制粗牙螺纹美制粗牙螺纹((UNCUNC))下孔径下孔径(%)M22 ×1.520.5021.0320.381/8-288.308.608.70M22 ×2.020.0020.0719.831/4-1911.0011.5011.7060%100%M24 ×1.023.0023.3522.923/8-1914.5015.0015.25SM1/16-80 1.30 1.34 1.181/16M24 ×1.2522.7523.1922.651/2-1418.1018.5019.00SM5/64-64 1.60 1.68 1.473/32M24 ×1.522.5023.0322.385/8-1421.00SM3/32-100 2.15 2.18 2.051/860%100%M24 ×2.022.0022.7021.833/4-1423.5024.0024.50SM3/32-56 1.90 2.03 1.795/32M1×0.250.900.920.86M25 ×1.024.0024.1923.927/8-1428.00SM1/8-44 2.55 2.73 2.4311/64M1.1×0.25 1.00 1.020.96M25 ×1.523.5024.0323.381-1129.6030.2530.50SM1/8-40 2.50 2.68 2.353/16M1.2×0.25 1.10 1.12 1.06M25 ×2.023.0023.7022.8311/8-1135.50SM9/64-40 2.90 3.08 2.757.32M1.4×0.3 1.25 1.30 1.24M26 ×1.524.5025.0324.3811/4-1138.1039.0039.50SM11/64-40 3.70 3.87 3.5415/64M1.6×0.35 1.45 1.49 1.41M27 ×1.026.0026.3525.9211/2-1144.0044.9045.00SM3/16-32 3.95 4.14 3.731/4M1.7×0.35 1.55 1.59 1.51M27 ×1.525.5026.0325.3813/4-1151.00SM3/16-28 3.80 4.06 3.589/32M1.8×0.35 1.65 1.69 1.61M27 ×2.025.0025.7024.832-1155.6056.6057.00SM7/32-32 4.70 4.94 4.535/16M2×0.4 1.80 1.87 1.78M28 ×1.526.5027.0326.38SM15/64-28 5.00 5.25 4.773/8M2.2×0.45 2.00 2.05 1.96M28 ×2026.0026.7025.83SM1/4-40 5.70 5.86 5.537/16M2.3×0.4 2.10 2.17 2.08M30 ×1.029.0029.3528.92SM1/4-28 5.40 5.64 5.171/2M2.5×0.45 2.30 2.35 2.26M30 ×1.528.5029.0328.38SM1/4-24 5.25 5.53 4.989/16M2.6×0.45 2.40 2.45 2.36M30 ×2.028.0028.7027.83NPT SM9/32-28 6.20 6.44 5.975/8M3×0.5 2.75 2.84 2.73M32 ×1.530.5031.0330.38下孔径SM9/32-20 5.80 6.15 5.4911/16M3.5×0.6 3.20 3.31 3.18M33 ×1.531.5032.0331.381/16-27 6.20SM5/16-287.007.23 6.673/4M4×0.7 3.65 3.77 3.62M33 ×2.031.0031.7030.831/8-278.50SM5/16-24 6.857.11 6.567/8M4.5×0.75 4.15 4.26 4.09M33 ×3.030.0031.5029.751/4-1811.00SM5/16-18 6.50 6.84 6.101M5×0.8 4.60 4.74 4.57M35 ×1.533.5034.0333.383/8-1814.50SM3/8-288.558.828.3511/8M6×1.0 5.50 5.68 5.46M36 ×1.534.5035.0334.381/2-1418.00SM3/8-188.058.437.6911/4M7×1.0 6.50 6.68 6.46M36 ×2.034.0034.7033.833/4-1423.00SM7/16-2810.1510.419.9313/8M8×1.257.357.597.32M36 ×3.033.0034.0532.751-111/２29.00SM7/16-169.409.889.0511/2M9×1.258.408.598.32M38 ×1.536.5037.0336.3811/4-111/２38.00SM1/2-2811.7511.9911.5215/8M10×1.59.259.519.19M39 ×1.537.5038.0337.3811/2-111/２44.00SM1/2-2011.3511.7111.0513/4M12×1.7511.1011.4311.05M39 ×2.037.0037.7036.832-111/３56.00SM1/2-1210.4011.059.9517/8M39 ×3.036.0037.0535.7521/265.892M40 ×1.538.5039.0338.38M40 ×2.038.0038.7037.83M40 ×3.037.0038.0536.75M42 ×1.540.5041.0340.3860%100%M42 ×2.040.0040.7039.83Pg7 -2011.4011.6911.08M42 ×3.039.0040.0538.75Pg9 -1814.0014.3313.66M42 ×4.038.0040.7037.66Pg11 -1817.2517.7317.06M45 ×1.543.5044.0343.38Pg13.5 -1819.0019.5318.86M45 ×2.043.0043.7042.83Pg16 -1821.2521.6320.96M45 ×3.042.0043.0541.75Pg21 -1626×7527.2426.48M45 ×4.041.0042.4040.67Pg29 -1635.5035.9435.18M48 ×2.046.0046.7045.83Pg36 -1645.5045.9445.18M48 ×3.045.0046.0544.75Pg42 -1652.5052.9452.08M48 ×4.044.0045.4043.67Pg48 -1657.5058.2457.48M50 ×1.548.5049.0348.38M50 ×2.048.0048.7047.83M50 ×3.047.0048.0546.75M52 ×1.550.5051.0350.38M52 ×2.050.0050.7049.83M52 ×3.049.0050.0548.7567.4622.225025.400028.575050.800047.625041.275044.450038.100034.925031.750014.287515.875017.462519.0500美制管牙螺纹无屑丝攻公制粗牙螺纹无屑丝攻公制粗牙螺纹((M )Pg Pg钢管牙钢管牙规格规格规格下孔径下孔径(%)56.4044.45下孔径下孔径(%)规格下孔径下孔径(%)12.70004.36563.96883.17501.587538.1029.4023.4018.1514.7011.158.756.35下孔径NPS 11.112512.70009.52507.93757.14386.35005.95315.55635厘7厘半1分1分2厘半--1分半1分7厘半2.3813--2分2分2厘半2分半3分3分半4分4分半5分5分半6分7分1吋1吋1分1吋2分1吋3分2吋1吋4分1吋5分1吋6分1吋7分。
各种螺纹详细参数和钻孔直径对照表
各种螺纹详细参数和钻孔直径对照表螺纹下孔径表螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2)下孔径崁合度區分：中(註1)2級(註2)內螺纹小径最小直径最大直径M1× 0.25 0.75 0.78 (80%) 0.729 0.7851.1 × 0.25 0.85 0.88 (80%) 0.829 0.8851.2 × 0.25 0.95 0.98 (80%) 0.929 0.9851.4 × 0.3 1.1 1.14 (80%) 1.075 1.1421.6 × 0.35 1.25 1.32 (75%) 1.221 1.3211.8 × 0.35 1.45 1.52 (75%) 1.421 1.5212× 0.4 1.6 1.65 (80%) 1.567 1.6792.2 × 0.45 1.75 1.83 (75%) 1.713 1.8382.5 × 0.45 2.1 2.13 (75%) 2.013 2.1383× 0.5 2.5 2.59 (75%) 2.459 2.5993.5 × 0.6 2.9 3.01 (75%) 2.850 3.0104× 0.7 3.3 3.39 (80%) 3.242 3.4224.5 × 0.75 3.8 3.85 (80%) 3.688 3.8785× 0.8 4.2 4.31 (80%) 4.134 4.334 6× 1 5 5.13 (80%) 4.917 5.153 7× 1 6 6.13 (80%) 5.917 6.153 8× 1.25 6.8 6.85 (85%) 6.647 6.912 9× 1.25 7.8 7.85 (85%) 7.647 7.912 10× 1.5 8.5 8.62 (85%) 8.376 8.676 11× 1.5 9.5 9.62 (85%) 9.376 9.676 12× 1.75 10.3 10.40 (85%) 10.106 10.441 14× 2 12 12.2 (85%) 11.835 12.210 16× 2 14 14.2 (85%) 13.835 14.210 18× 2.5 15.5 15.7 (85%) 15.294 15.744 20× 2.5 17.5 17.7 (85%) 17.294 17.744 22× 2.5 19.5 19.2 (85%) 19.294 19.744 24× 3 21 21.2 (85%) 20.752 21.252 27× 3 24 24.2 (85%) 23.752 24.252 30× 3.5 26.5 26.6 (90%) 26.211 26.771 33× 3.5 29.5 29.6 (90%) 29.211 29.771 36× 4 32 32.1 (90%) 31.670 32.27039 × 4 35 35.1 (90%) 34.670 35.27042 × 4.5 37.5 37.6 (90%) 37.129 37.79945 × 4.5 40.5 40.6 (90%) 40.129 40.79948 × 5 43 43.1 (90%) 42.587 43.297 註(1)M1.4以下等級：5H、M1.6以上等級：6H(2)基於JIS B 0209-1982標準螺纹下孔径表螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2)下孔径崁合度區分：中(註1)2級(註2)內螺纹小径最小直径最大直径M2.5 × 0.35 2.2 2.22 (75%) 2.121 2.221 3× 0.35 2.7 2.72 (75%) 2.621 2.7213.5 × 0.35 3.2 3.22 (75%) 3.121 3.2214× 0.5 3.5 3.59 (75%) 3.459 3.5994.5 × 0.5 4 4.09 (75%) 3.959 4.0995× 0.5 4.5 4.59 (75%) 4.459 4.5995.5 × 0.5 5 5.09 (75%) 4.959 5.0996× 0.75 5.3 5.35 (80%) 5.188 5.378 7× 0.75 6.3 6.35 (80%) 6.188 6.378 8× 1 7 7.13 (80%) 6.917 7.153 8× 0.75 7.3 7.35 (80%) 7.188 7.378 9× 1 8 8.13 (80%) 7.917 8.153 9× 0.75 8.3 8.35 (80%) 8.188 8.378 10× 1.25 8.8 8.85 (85%) 8.647 8.912 10× 1 9 9.13 (80%) 8.917 9.153 10× 0.75 9.3 9.35 (80%) 9.188 9.37811 × 1 10 10.13 (80%) 9.917 10.15311 × 0.75 10.3 10.35 (80%) 10.188 10.37812 × 1.5 10.5 10.62 (85%) 10.376 10.67612 × 1.25 10.8 10.85 (85%) 10.647 10.91212 × 1 11 11.13 (80%) 10.917 11.15314 × 1.5 12.5 12.62 (85%) 12.376 12.67614 × 1 13 13.13 (80%) 12.917 13.15315 × 1.5 13.5 13.62 (85%) 13.376 13.67615 × 1 14 14.13 (80%) 13.917 14.15316 × 1.5 14.5 14.62 (85%) 14.376 14.67616 × 1 15 15.13 (80%) 14.917 15.15317 × 1.5 15.5 15.62 (85%) 15.376 15.67617 × 1 16 16.13 (80%) 15.917 16.15318 × 2 16 16.2 (85%) 15.835 16.21018 × 1.5 16.5 16.62 (85%) 16.376 16.67618 × 1 17 17.13 (80%) 16.917 17.15320 × 2 18 18.2 (85%) 17.835 18.21020 × 1.5 18.5 18.62 (85%) 18.376 18.67620 × 1 19 19.13 (80%) 18.917 19.15322 × 2 20 20.2 (85%) 19.835 20.21022 × 1.5 20.5 20.62 (85%) 20.376 20.67622 × 1 21 21.13 (80%) 20.917 21.15324 × 2 22 22.2 (85%) 21.835 22.21024 × 1.5 22.5 22.62 (85%) 22.376 22.67624 × 1 23 23.13 (80%) 22.917 23.15325 × 2 23 23.2 (85%) 22.835 23.21025 × 1.5 23.5 23.62 (85%) 23.376 23.67625 × 1 24 24.13 (80%) 23.917 24.153 螺纹下孔径表螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2) 崁合度區分：中(註1)2級(註2)內螺纹小径下孔径最小直径最大直径M26 × 1.5 24.5 24.62 (85%) 24.376 24.67627 × 2 25 25.2(85%) 24.835 25.21027 × 1.5 25.5 25.62 (85%) 25.376 25.67627 × 1 26 26.13 (80%) 25.917 26.15328 × 2 26 26.2(85%) 25.835 26.21028 × 1.5 26.5 26.62 (85%) 26.376 26.67628 × 1 27 27.13 (80%) 26.917 27.15330 × 3 27 27.2 (85%) 26.752 27.25230 × 2 28 28.2 (85%) 27.835 28.21030 × 1.5 28.5 28.62 (85%) 28.376 28.67630 × 1 29 29.13 (80%) 28.917 29.15332 × 2 30 30.2 (85%) 29.835 30.21032 × 1.5 30.5 30.62 (85%) 30.376 30.67633 × 3 30 30.2 (85%) 29.752 30.25233 × 2 31 31.2 (85%) 30.835 31.21033 × 1.5 31.5 31.62 (85%) 31.376 31.67635 × 1.5 33.5 33.62 (85%) 33.376 33.67636 × 3 33 33.2 (85%) 32.752 33.25236 × 2 34 34.2 (85%) 33.835 34.21036 × 1.5 34.5 34.62 (85%) 34.376 34.67638 × 1.5 36.5 36.62 (85%) 36.376 36.67639 × 3 36 36.2 (85%) 35.752 36.25239 × 2 37 37.2 (85%) 36.835 37.21039 × 1.5 37.5 37.62 (85%) 37.376 37.67640 × 3 37 37.2 (85%) 36.752 37.25240 × 2 38 38.2 (85%) 37.835 38.21040 × 1.5 38.5 38.62 (85%) 38.376 38.67642 × 4 38 38.1 (90%) 37.670 38.27042 × 3 39 39.2 (85%) 38.752 39.25242 × 2 40 40.2 (85%) 39.835 40.21042 × 1.5 40.5 40.62 (85%) 40.376 40.67645 × 4 41 41.1 (90%) 40.670 41.27045 × 3 42 42.2 (85%) 41.752 42.25245 × 2 43 43.2 (85%) 42.835 43.21045 × 1.5 43.5 43.62 (85%) 43.376 43.67648 × 4 44 44.1 (90%) 43.670 44.27048 × 3 45 45.2 (85%) 44.752 45.25248 × 2 46 46.2 (85%) 45.835 46.21048 × 1.5 46.5 46.62 (85%) 46.376 46.67650 × 3 47 47.2 (85%) 46.752 47.25250 × 2 48 48.2 (85%) 47.835 48.21050 × 1.5 48.5 48.62 (85%) 48.376 48.676 註(1)等級：6H(2)基於JIS B 0211-1982標準螺纹下孔径表螺纹尺寸钻头直径2B級螺纹內螺纹小径下孔径最小直径最大直径NO.1 -64UNC 1.55 1.57 (65%) 1.425 1.5822 -56 1.8 1.86 (65%) 1.695 1.8713 -48 2.1 2.14 (65%) 1.941 2.1464 -40 2.3 2.36 (70%) 2.157 2.3855 -40 2.6 2.69 (70%) 2.487 2.6976 -32 2.8 2.86 (75%) 2.642 2.8958 -32 3.4 3.52 (75%) 3.302 3.53010 -24 3.9 3.91 (80%) 3.683 3.96212 -24 4.5 4.57 (80%) 4.344 4.5971/4-20 5.1 5.25 (80%) 4.979 5.257 5/16-18 6.6 6.72 (80%) 6.401 6.731 3/8-16 8 8.15 (80%) 7.798 8.153 7/16 -14 9.4 9.50 (80%) 9.144 9.550 1/2-13 10.8 11.0 (80%) 10.592 11.023 9/16 -12 12.2 12.3 (85%) 11.989 12.446 5/8-11 13.6 13.8 (85%) 13.386 13.868 3/4-10 16.5 16.8 (80%) 16.307 16.840 7/8-9 19.5 19.6 (85%) 19.177 19.7611 -8 22.2 22.5 (85%) 21.971 22.60611/8 -7 25 25.2 (85%) 24.638 25.349 11/4 -7 28.2 28.4 (85%) 27.813 28.524 13/8 -6 30.8 31.0 (85%) 30.353 31.115 11/2 -6 34 34.2 (85%) 33.528 34.290 13/4 -5 39.5 39.8 (85%) 38.964 39.8272 - 4 45.2 45.3 (90%) 44.679 45.593 螺纹下孔径表螺纹尺寸钻头直径2B級螺纹下孔径內螺纹小径最小直径最大直径NO.0-80UNF 1.25 1.30 (65%) 1.182 1.3051 -72 1.55 1.61 (65%) 1.474 1.6122 -64 1.85 1.90 (65%) 1.756 1.9123 -56 2.1 2.17 (70%) 2.025 2.1974 -48 2.4 2.44 (70%) 2.271 2.4585 -44 2.7 2.74 (70%) 2.551 2.7406 -40 2.9 3.02 (70%) 2.820 3.0228 -36 3.5 3.59 (75%) 3.404 3.60610 -32 4.1 4.14 (80%) 3.963 4.16512 -28 4.6 4.70 (80%) 4.496 4.7241/4-28 5.5 5.56 (80%) 5.360 5.588 5/16-24 6.9 7.02 (80%) 6.782 7.035 3/8-24 8.5 8.61 (80%) 8.382 8.636 7/16-20 9.9 10.01 (80%) 9.729 10.033 1/2-20 11.5 11.60 (80%) 11.329 11.607 9/16-18 12.9 13.07 (80%) 12.751 13.081 5/8-18 14.5 14.65 (80%) 14.351 14.681 3/4-16 17.5 17.59 (85%) 17.323 17.678 7/8-14 20.5 20.6(85%) 20.270 20.675 1-12 23.2 23.5(85%) 23.114 23.5711 1/8 -12 26.5 26.7(80%) 26.289 26.7461 1/4 -12 29.5 29.9(80%) 29.464 29.9211 3/8 -12 32.8 33.0(85%) 32.639 33.0961 1/2 -12 36 36.2(85%) 35.814 36.271 螺纹下孔径表螺纹尺寸下孔径嵌合率A列(硬材質) B列(軟材質) A列直径B列直径內螺纹最小径內螺纹最大径W 1/8 2.6 2.5 70.7 83.0 70.0 88.3 3/16 3.7 3.6 78.4 85.8 70.0 88.3 1/4 5.1 5.0 76.9 83.0 70.5 88.3 5/16 6.6 6.5 74.0 99.5 70.1 88.4 3/8 8.0 7.9 75.0 80.0 69.5 88.2 7/16 9.4 9.3 73.7 80.0 69.0 88.8 1/2 10.7 10.5 73.8 81.2 69.0 88.2 9/16 12.3 12.0 73.4 84.4 69.0 88.2 5/8 13.7 13.5 73.5 80.3 69.6 88.5 3/4 16.7 16.5 72.3 78.4 69.6 88.3 7/8 19.5 19.3 75.4 80.9 70.1 88.41 22.4 22.0 73.8 83.6 71.0 88.21 1/825.0 24.8 76.9 81.3 72.0 88.41 1/428.3 28.0 74.3 80.7 72.0 88.41 3/830.5 30.3 81.6 85.3 73.8 88.61 1/233.8 33.5 79.3 84.8 73.8 88.61 5/836.0 35.7 81.1 85.7 74.8 88.31 3/439.2 39.0 80.7 83.8 74.8 88.31 7/841.8 41.5 80.6 84.7 74.7 88.42 45.0 44.7 80.2 84.4 74.7 88.4 螺纹下孔径表管用螺纹尺寸JIS B 0203 JIS B 2301 錐管內螺纹Rc(PT) 平行內螺纹Rp(PS) 錐管內螺纹計 算 值 下 孔 径 計 算 值 下 孔 径 計 算 值 下 孔 径 1/166.230 6.2 6.490 6.5 － － 1/8 8.235 8.2 8.495 8.5 8.191 8.2 1/4 10.941 10.9 11.341 11.4 10.945 10.9 3/8 14.428 14.4 14.846 14.9 14.388 14.4 1/2 17.950 18 18.489 18.5 17.943 18 3/4 23.349 23 23.975 24 23.305 23 1 29.423 29 30.111 30 29.353 29 1 1/4 37.940 38 38.772 39 37.890 38 1 1/2 43.833 44 44.565 45 43.720 43 2 55.412 55 56.476 56 55.406 55 2 1/2 70.701 71 72.009 72 70.788 70 3 83.201 83 84.709 85 83.364 83 3 1/2 95.547 96 97.155 97 95.747 95 4 107.834 108 109.855 110 108.322 108 5 133.110 133 135.255 135 133.597 133 6 158.510 159 160.655 161 158.810158 7 183.360 183 185.954 186 8 208.560 209 211.354 212 9 233.960 234 236.754 237 10 259.166 259 262.154 262 12309.747310312.875313螺纹下孔径表螺 纹 下 孔 径 內螺纹小径(參考)尺 寸大 径標準嵌合 高度H系 列10095 90 85 80 75 70 65 60 最小直径 最大直径 G 1/16 7.723 0.5808 6.56 6.62 6.68 6.74 6.79 6.85 6.91 6.97 7.03 6.843 6.561 G(PF)1/8 9.728〞 8.57 8.62 8.68 8.74 8.80 8.86 8.92 8.97 9.03 8.848 8.566 1/4 13.157 0.8560 11.53 11.62 11.70 11.79 11.87 11.96 12.04 12.13 11.890 11.445 3/8 16.662 〞 14.95 15.04 15.12 15.21 15.29 15.38 15.46 15.55 15.64 15.395 14.950 1/2 20.955 1.1618 18.8 18.9 19.0 19.1 19.2 19.3 19.4 19.6 19.172 18.631 5/8 22.911 〞 20.6 20.7 20.8 20.9 21.0 21.2 21.3 21.4 21.5 21.130 20.589 3/4 26.441 〞 24.2 24.4 24.5 24.6 24.7 24.8 24.9 25.0 24.658 24.117 7/8 30.201 〞 27.9 28.0 28.1 28.2 28.3 38.5 28.6 28.7 28.8 28.418 27.877 1 33.249 14.786 30.3 30.4 30.6 30.7 30.9 31.0 31.2 31.3 31.5 30.931 30.291 1 1/8 37.897 〞 35.1 35.2 35.4 35.5 35.7 35.8 35.9 36.5 35.579 34.939 1 1/4 41.910 〞 39.0 39.1 39.2 39.4 39.6 39.7 39.8 40.0 40.1 39.592 38.952 1 3/8 44.323 〞 41.4 41.5 41.7 41.8 42.0 42.1 42.2 42.4 42.6 42.005 41.365 1 1/2 47.803 〞 45.0 45.1 45.3 45.4 45.6 45.7 45.9 46.0 45.485 49.023 1 5/8 51.910 〞 49.2 49.3 49.5 49.6 49.8 49.9 50.0 50.2 49.672 50.788 1 3/4 53.746 〞 50.850.951.151.251.451.551.752.052.051.42856.6562 59.614 〞56.8 57.0 57.1 57.2 57.4 57.5 57.8 57.8 57.296管用螺纹尺寸斜行螺纹(NPT) 平行螺纹(NPS) 钻头直径钻头直径使用鉸刀場合不使用鉸刀場合1/16 －0.234 ( 5.94)0.246( 6.15) 1/4 0.250 ( 6.35)1/8 21/64 0.328 ( 8.33) －0.332( 8.43) 11/32 0.344 ( 8.74)1/4 27/64 0.422 (10.72) 7/16 0.438 (11.13) 7/16 0.438 (11.13)3/8 9/16 0.562 (14.27) 9/16 0.562 (14.27) 37/64 0.578 (14.68) 1/2 11/16 0.688 (17.48) 45/64 0.703 (17.86) 23/32 0.719 (18.26) 3/4 57/64 0.891 (22.63) 29/32 0.906 (23.01) 59/64 0.922 (23.42)1 1 1/8 1.125 (28.58) 19/64 1.141 (28.98) 1 5/32 1.156 (29.36)1 1/4 1 15/32 1.469 (37.31) 1 31/64 1.484 (37.69) 1 1/2 1.500 (38.10)1 1/2 1 1/16 1.703 (43.26) 123/32 1.719 (43.66) 1 3/4 1.750 (44.45)2 2 11/64 2.172 (55.17) 2 3/16 2.188 (55.58) 27/32 2.219 (56.36)2 1/2 2 39/64 2.578 (65.48) 2 39/64 2.609 (66.27) 221/32 2.656 (67.46)上述钻头直径來源於美制管用螺纹ANSI／ASME B—1983 Pipe Threads, General Purpose (Inch)標準。
螺纹螺距及底孔查询表[新版]
![螺纹螺距及底孔查询表[新版]](https://img.taocdn.com/s3/m/adaae649f11dc281e53a580216fc700abb6852da.png)
60%100%60%100%60%100%60%100%60%100% M1 ×0.250.750.840.73M1 ×0.20.800.870.78W1/16-60 1.20 1.26 1.05Nr.1-64 1.50 1.60 1.42Nr.0-80 1.30 1.32 1.18 M1.1 ×0.250.850.940.83M1.1 ×0.20.900.970.88W3/32-48 1.80 1.97 1.70Nr.2-56 1.80 1.89 1.69Nr.1-72 1.60 1.62 1.47 M1.2 ×0.250.95 1.040.93M1.2 ×0.2 1.00 1.070.98W1/8-40 2.60 2.69 2.36Nr.3-48 2.10 2.17 1.94Nr.2-64 1.90 1.93 1.75 M1.4×0.3 1.10 1.21 1.08M1.4 ×0.2 1.20 1.27 1.18W5/32-32 3.10 3.36 2.95Nr.4-40 2.30 2.43 2.16Nr.3-56 2.10 2.22 2.02 M1.6 ×0.35 1.25 1.37 1.22M1.6 ×0.2 1.40 1.47 1.38W3/16-24 3.60 3.95 3.41Nr.5-40 2.60 2.76 2.49Nr.4-48 2.40 2.50 2.27 M1.7 ×0.35 1.35 1.47 1.32M1.8 ×0.2 1.60 1.67 1.58W7/32-24 4.50 4.74 4.20Nr.6-32 2.75 2.99 2.65Nr.5-44 2.70 2.80 2.55 M1.8 ×0.35 1.45 1.57 1.42M2 ×0.25 1.75 1.84 1.73W1/4-20 5.10 5.37 4.72Nr.8-32 3.50 3.65 3.31Nr.6-40 3.00 3.09 2.82 M2 ×0.4 1.60 1.74 1.57M2.2 ×0.25 1.95 2.07 1.93W5/16-18 6.50 6.85 6.13Nr.10-24 3.80 4.14 3.68Nr.8-36 3.50 3.71 3.40 M2.2 ×0.45 1.75 1.91 1.71M2.5 ×0.35 2.15 2.27 2.12W3/8-167.908.317.49Nr.12-24 4.50 4.80 4.34Nr.10-32 4.10 4.31 3.97 M2.3 ×0.4 1.90 2.04 1.87M3 ×0.35 2.65 2.77 2.62W7/16-149.309.728.791/4-20 5.10 5.53 4.98Nr.12-28 4.70 4.90 4.50 M2.5 ×0.45 2.05 2.21 2.01M3.5 ×0.35 3.15 3.27 3.12W1/2-1210.5011.079.995/16-18 6.507.02 6.411/4-28 5.50 5.76 5.37 M2.6 ×0.45 2.15 2.31 2.11M4 ×0.5 3.50 3.68 3.46W9/16-1212.0012.6611.583/8-167.908.497.815/16-24 6.907.25 6.79 M3 ×0.5 2.50 2.68 2.46M4.5 ×0.5 4.00 4.18 3.96W5/8-1113.5014.1012.927/16-149.309.939.153/8-248.508.848.38 M3 ×0.6 2.40 2.61 2.35M5 ×0.5 4.50 4.68 4.46W3/4-1016.5017.1015.801/2-1310.8011.4310.587/16-209.9010.299.74 M3.5 ×0.6 2.90 3.11 2.85M5.5 ×0.5 5.00 5.18 4.96W7/8-919.2520.0618.619/16-1212.2012.9112.001/2-2011.5011.8811.33 M4 ×0.7 3.30 3.55 3.24M6 ×0.5 5.50 5.68 5.46W1-822.0022.9621.335/8-1113.5014.3813.389/16-1812.9013.3712.76 M4 ×0.75 3.25 3.51 3.19M6 ×0.75 5.25 5.51 5.19W11/8-724.7525.7923.933/4-1016.5017.4016.305/8-1814.5014.9614.35 M4.5 ×0.75 3.75 4.01 3.69M7 ×0.75 6.25 6.51 6.19W11/4-727.7528.9627.107/8-919.5020.3919.173/4-1617.5018.0217.33 M5 ×0.8 4.20 4.48 4.13M8 ×0.757.257.517.19W13/8-630.2031.6729.501-822.2523.3421.967/8-1420.2521.0520.26 M5 ×0.9 4.10 4.70 4.66M8 ×1.07.007.35 6.92W11/2-633.5034.8532.6811/4-728.0029.3927.821-1223.2524.0323.11 M6 ×1.0 5.00 5.35 4.92M9 ×1.08.008.357.92W15/8-535.5037.3734.7713/8-631.0032.1830.3411/8-1226.5027.2026.28 M7 ×1.0 6.00 6.35 5.92M10 ×0.759.259.519.19W13/4-538.5040.5537.9411/2-634.5035.3533.5211/4-1229.5030.3829.46 M8 ×1.25 6.807.19 6.65M10 ×1.09.009.358.92W17/8-4.541.5043.2940.4013/4-539.0041.1538.9513/8-1232.5033.3532.63 M9 ×1.257.808.197.65M10 ×1.258.759.198.65W2-4.544.5046.4643.572-4.545.0047.1344.6911/2-1236.0036.7335.81 M10 ×1.58.509.038.38M11 ×1.010.0010.359.92M11 ×1.59.5010.039.38M12 ×0.7511.2511.5111.19M12 ×1.7510.2010.8610.11M12 ×1.011.0011.3510.92M14 ×2.012.0012.7011.83M12 ×1.2510.7511.1910.65M16 ×2.014.0014.7013.83M12 ×1.510.5011.0310.38M18 ×2.515.5016.3815.29M14 ×1.013.0013.3512.9260%100%60%100%60%100% M20 ×2.517.5018.3817.29M14 ×1.2512.7513.1912.65W1/16-60 1.40 1.42 1.32Nr.1-64 1.70 1.73 1.64Nr.0-80 1.40 1.42 1.35 M22 ×2.519.5020.3819.29M14 ×1.512.5013.0312.38W3/32-48 2.10 2.18 2.04Nr.2-56 2.00 2.04 1.94Nr.1-72 1.70 1.74 1.66 M24 ×3.021.0022.0520.75M15 ×1.014.0014.3513.92W1/8-40 2.85 2.93 2.77Nr.3-48 2.25 2.34 2.23Nr.2-64 2.00 2.06 1.97 M27 ×3.024.0025.0523.75M15 ×1.2513.7514.1913.65W5/32-32 3.55 3.66 3.46Nr.4-40 2.55 2.64 2.50Nr.3-56 2.30 2.37 2.27 M30 ×3.526.5027.7326.21M15 ×1.513.5014.0313.38W3/16-24 4.25 4.36 4.08Nr.5-40 2.90 2.97 2.83Nr.4-48 2.60 2.67 2.56 M33 ×3.529.5030.7329.21M16 ×1.015.0015.3514.92W7/32-24 5.05 5.15 4.88Nr.6-32 3.15 3.25 3.08Nr.5-44 2.90 2.99 2.86 M36 ×4.032.0033.4031.67M16 ×1.2514.7515.1914.65W1/4-20 5.75 5.86 5.54Nr.8-32 3.80 3.91 3.74Nr.6-40 3.20 3.30 3.16 M39 ×4.035.0036.4034.67M16 ×1.514.5015.0314.38W5/16-187.307.407.03Nr.10-24 4.35 4.48 4.25Nr.8-36 3.85 3.94 3.78 M42 ×4.537.5039.0837.13M18 ×1.017.0017.3516.92W3/8-168.808.928.51Nr.12-24 5.00 5.14 4.91Nr.10-32 4.45 4.57 4.40 M45 ×4.540.5042.0840.13M18 ×1.2516.7517.1916.65W7/16-1410.3010.429.951/4-20 5.75 5.94 5.66Nr.12-28 5.05 5.19 4.99 M48 ×5.043.0044.7542.59M18 ×1.516.5017.0316.38W1/2-1211.7511.8911.345/16-187.307.487.171/4-28 5.95 6.06 5.86 M52 ×5.047.0048.7546×59M18 ×2.016.0016.7015.833/8-168.809.018.675/16-247.407.597.36 M56 ×5.550.5052.4350.05M20 ×1.019.0019.3518.927/16-1410.3010.5210.133/8-249.009.188.95 M60 ×5.554.5056.4354.05M20 ×1.2518.7519.1918.651/2-1311.8012.0711.641/2-2012.1012.2912.01 M64 ×658.0060.1057.50M20 ×1.518.5019.0318.38M68 ×662.0064.1061.50M20 ×2.018.0018.7017.83PT(Rc)PS(Pp)PF(G)M72 ×666.0068.1065.50M22 ×1.021.0021.3520.92下孔径下孔径下孔径M76 ×670.0072.1069.50M22 ×1.2520.7521.1920.651/16-28 6.30 6.50 6.70英时英时//公 对照表无屑丝攻美制细牙螺纹无屑丝攻美制细牙螺纹((UNFUNF))规格规格规格规格公制粗牙螺纹公制粗牙螺纹((M)下孔径(%)下孔径规格公制细牙螺纹公制细牙螺纹((M)下孔径下孔径(%)无屑丝攻英制粗牙螺纹无屑丝攻英制粗牙螺纹((W)规格规格英制管牙螺纹无屑丝攻美制粗牙螺纹无屑丝攻美制粗牙螺纹((UNCUNC))针车牙螺纹针车牙螺纹((SMSM))英制粗牙螺纹英制粗牙螺纹((W)下孔径下孔径(%)规格美制细牙螺纹美制细牙螺纹((UNFUNF))下孔径下孔径(%)规格螺丝攻下孔径对照表下孔径下孔径(%)下孔径下孔径(%)下孔径下孔径(%)美制粗牙螺纹美制粗牙螺纹((UNCUNC))下孔径下孔径(%)M22 ×1.520.5021.0320.381/8-288.308.608.70M22 ×2.020.0020.0719.831/4-1911.0011.5011.7060%100%M24 ×1.023.0023.3522.923/8-1914.5015.0015.25SM1/16-80 1.30 1.34 1.181/16M24 ×1.2522.7523.1922.651/2-1418.1018.5019.00SM5/64-64 1.60 1.68 1.473/32M24 ×1.522.5023.0322.385/8-1421.00SM3/32-100 2.15 2.18 2.051/860%100%M24 ×2.022.0022.7021.833/4-1423.5024.0024.50SM3/32-56 1.90 2.03 1.795/32M1×0.250.900.920.86M25 ×1.024.0024.1923.927/8-1428.00SM1/8-44 2.55 2.73 2.4311/64M1.1×0.25 1.00 1.020.96M25 ×1.523.5024.0323.381-1129.6030.2530.50SM1/8-40 2.50 2.68 2.353/16M1.2×0.25 1.10 1.12 1.06M25 ×2.023.0023.7022.8311/8-1135.50SM9/64-40 2.90 3.08 2.757.32M1.4×0.3 1.25 1.30 1.24M26 ×1.524.5025.0324.3811/4-1138.1039.0039.50SM11/64-40 3.70 3.87 3.5415/64M1.6×0.35 1.45 1.49 1.41M27 ×1.026.0026.3525.9211/2-1144.0044.9045.00SM3/16-32 3.95 4.14 3.731/4M1.7×0.35 1.55 1.59 1.51M27 ×1.525.5026.0325.3813/4-1151.00SM3/16-28 3.80 4.06 3.589/32M1.8×0.35 1.65 1.69 1.61M27 ×2.025.0025.7024.832-1155.6056.6057.00SM7/32-32 4.70 4.94 4.535/16M2×0.4 1.80 1.87 1.78M28 ×1.526.5027.0326.38SM15/64-28 5.00 5.25 4.773/8M2.2×0.45 2.00 2.05 1.96M28 ×2026.0026.7025.83SM1/4-40 5.70 5.86 5.537/16M2.3×0.4 2.10 2.17 2.08M30 ×1.029.0029.3528.92SM1/4-28 5.40 5.64 5.171/2M2.5×0.45 2.30 2.35 2.26M30 ×1.528.5029.0328.38SM1/4-24 5.25 5.53 4.989/16M2.6×0.45 2.40 2.45 2.36M30 ×2.028.0028.7027.83NPT SM9/32-28 6.20 6.44 5.975/8M3×0.5 2.75 2.84 2.73M32 ×1.530.5031.0330.38下孔径SM9/32-20 5.80 6.15 5.4911/16M3.5×0.6 3.20 3.31 3.18M33 ×1.531.5032.0331.381/16-27 6.20SM5/16-287.007.23 6.673/4M4×0.7 3.65 3.77 3.62M33 ×2.031.0031.7030.831/8-278.50SM5/16-24 6.857.11 6.567/8M4.5×0.75 4.15 4.26 4.09M33 ×3.030.0031.5029.751/4-1811.00SM5/16-18 6.50 6.84 6.101M5×0.8 4.60 4.74 4.57M35 ×1.533.5034.0333.383/8-1814.50SM3/8-288.558.828.3511/8M6×1.0 5.50 5.68 5.46M36 ×1.534.5035.0334.381/2-1418.00SM3/8-188.058.437.6911/4M7×1.0 6.50 6.68 6.46M36 ×2.034.0034.7033.833/4-1423.00SM7/16-2810.1510.419.9313/8M8×1.257.357.597.32M36 ×3.033.0034.0532.751-111/２29.00SM7/16-169.409.889.0511/2M9×1.258.408.598.32M38 ×1.536.5037.0336.3811/4-111/２38.00SM1/2-2811.7511.9911.5215/8M10×1.59.259.519.19M39 ×1.537.5038.0337.3811/2-111/２44.00SM1/2-2011.3511.7111.0513/4M12×1.7511.1011.4311.05M39 ×2.037.0037.7036.832-111/３56.00SM1/2-1210.4011.059.9517/8M39 ×3.036.0037.0535.7521/265.892M40 ×1.538.5039.0338.38M40 ×2.038.0038.7037.83M40 ×3.037.0038.0536.75M42 ×1.540.5041.0340.3860%100%M42 ×2.040.0040.7039.83Pg7 -2011.4011.6911.08M42 ×3.039.0040.0538.75Pg9 -1814.0014.3313.66M42 ×4.038.0040.7037.66Pg11 -1817.2517.7317.06M45 ×1.543.5044.0343.38Pg13.5 -1819.0019.5318.86M45 ×2.043.0043.7042.83Pg16 -1821.2521.6320.96M45 ×3.042.0043.0541.75Pg21 -1626×7527.2426.48M45 ×4.041.0042.4040.67Pg29 -1635.5035.9435.18M48 ×2.046.0046.7045.83Pg36 -1645.5045.9445.18M48 ×3.045.0046.0544.75Pg42 -1652.5052.9452.08M48 ×4.044.0045.4043.67Pg48 -1657.5058.2457.48M50 ×1.548.5049.0348.38M50 ×2.048.0048.7047.83M50 ×3.047.0048.0546.75M52 ×1.550.5051.0350.38M52 ×2.050.0050.7049.83M52 ×3.049.0050.0548.7567.4622.225025.400028.575050.800047.625041.275044.450038.100034.925031.750014.287515.875017.462519.0500美制管牙螺纹无屑丝攻公制粗牙螺纹无屑丝攻公制粗牙螺纹((M )Pg Pg钢管牙钢管牙规格规格规格下孔径下孔径(%)56.4044.45下孔径下孔径(%)规格下孔径下孔径(%)12.70004.36563.96883.17501.587538.1029.4023.4018.1514.7011.158.756.35下孔径NPS 11.112512.70009.52507.93757.14386.35005.95315.55635厘7厘半1分1分2厘半--1分半1分7厘半2.3813--2分2分2厘半2分半3分3分半4分4分半5分5分半6分7分1吋1吋1分1吋2分1吋3分2吋1吋4分1吋5分1吋6分1吋7分。
螺纹下孔径表(无屑丝攻用)
2
1.78 ~ 1.82(100~80)
4
1.81 ~ 1.85 (100~75)
2.3×0.4
2
2.08 ~ 2.12(100~80)
4
2.11 ~ 2.15 (100~75)
2.5×0.45
2
2.25 ~ 2.29(100~80)
4
2.28 ~ 2.33 (100~75)
2.6×0.45
7/16 -14
7
10.11 ~10.25 (100~80)
5
10.08 ~10.19 (100~85)
1/2 -13
8
10.62 ~11.78 (100~80)
6
11.60 ~11.68 (100~90)
9/16 -12
10
13.14 ~13.27 (100~85)
8
13.11 ~13.24 (100~85)
6
3.65 ~ 3.70 (100~85)
5×0.8
4
4.57 ~ 4.62(100~85)
6
4.59 ~ 4.66 (100~80)
6×1
4
5.45 ~ 5.51(100~85)
7
5.48 ~ 5.57 (100~80)
7×1
4
6.45 ~ 6.51(100~85)
7
6.48 ~ 6.57 (100~80)
16.57 ~16.67 (100~90)
11
16.63 ~16.78 (100~85)
18×1.5
6
17.17 ~17.23 (100~90)
10
17.22 ~17.31 (100~85)
20×2.5
各种螺纹详细参数和钻孔直径对照表
螺纹下孔径表公制粗牙螺纹 JIS B 0209-1982(單位：mm)註(1)以下等級：5H、以上等級：6H(2)基於JIS B 0209-1982標準螺纹下孔径表螺纹下孔径表註(1)等級：6H(2)基於JIS B 0211-1982標準螺纹下孔径表美制粗牙螺纹 (單位：mm)螺纹下孔径表美制細牙螺纹 (單位：mm)螺纹下孔径表英制粗牙螺纹(單位：mm)螺纹下孔径表英制管用螺纹 (單位：mm)螺纹下孔径表美制斜行管用螺纹 (NPT‧NPS) (單位：mm)上述钻头直径來源於美制管用螺纹ANSI／ASME —1983 Pipe Threads, General Purpose (Inch)標準。
螺纹下孔径表美制管用耐密斜行螺纹(NPTF‧NPSF) (單位：mm)上述钻头直径來源於美制管用耐密斜行螺纹ANSI —1957 Dryseal Pipe Threads (Inch)標準。
螺纹下孔径表(無屑絲攻用)公制螺纹(NRT) (單位：mm)螺纹下孔径表(無屑絲攻用)美制粗牙螺纹(NRT) (單位：mm)螺纹下孔径表(無屑絲攻用)美制細牙螺纹(NRT) (單位：mm)英制管用平行螺纹(NRT) (單位：mm)螺纹下孔径表(無屑絲攻用)公制螺纹(HRT) (單位：mm)螺纹下孔径表(護套螺纹用)公制粗牙螺纹 HL-NRT (單位：mm)螺纹下孔径表(護套螺纹用)公制粗牙螺纹 (單位：mm)公制細牙螺纹 (單位：mm)螺纹下孔径表(護套螺纹用)美制粗牙螺纹 (單位：mm)各 種 換 算 表山數節距換算表管用螺絲基準寸法(mm)。
螺纹下孔径规格表
M9*1
8.00 8.153 7.918
M9*0.75 8.30 8.378 8.188
M10*1.25 8.80 8.912 8.647
M10*1
9.00 9.153 8.917
M10*0.75 9.30 9.378 9.188
M10*0.5 9.50 9.520 9.400
M11*1 10.00 10.153 9.917
M11*1.5 9.50 9.676 9.376
M12*1.75 10.30 10.441 10.106
M14*2 12.00 12.210 11.835
M16*2 14.00 14.210 13.835
M18*2.5 15.50 15.744 15.294
M20*2.5 17.50 17.744 17.294
M2.6*0.45 2.20 2.238 2.113
M3*0.5 2.50 2.599 2.459
M3*0.6 2.40 2.440 2.280
M3.5*0.6 2.90 3.010 2.850
M4*0.7 3.30 3.422 3.242
M4*0.75 3.25 3.326 3.106
M4.5*0.75 3.80 3.878 3.688
No. 10 - 24 3.90 3.962 3.683
No. 12 - 24 4.50 4.597 4.344
1/4 - 20 UNC 5.10 5.257 4.979
5/16 - 18 3/8 - 16
標準徑 2級牙鑽孔徑 最大 最小
18.00 18.210 17.835 18.50 18.676 18.376 19.00 19.153 18.917 20.00 20.210 19.835 20.50 20.676 20.376 21.00 21.153 20.917 22.00 22.210 21.835 22.50 22.676 22.376 23.00 23.153 22.917 23.00 23.210 22.835 23.50 23.676 23.376 24.00 24.153 23.917 24.50 24.676 24.376 25.00 25.210 24.835 25.50 25.676 25.376 26.00 26.153 25.917 26.00 26.210 25.835 26.50 26.676 26.376 27.00 27.153 26.917 27.00 27.252 26.752 28.00 28.210 27.835 28.50 28.676 28.376 29.00 29.153 28.917 30.00 30.210 29.835 30.50 30.676 30.376 30.00 30.252 29.752 31.00 31.210 30.835 31.50 31.676 31.376 33.50 33.676 33.376 33.00 33.252 32.752 34.00 34.210 33.835 34.50 34.676 34.376 36.50 36.676 36.376 36.00 36.252 35.752 37.00 37.210 36.835 37.50 37.676 37.376 37.00 37.252 36.752 38.00 38.210 37.835 38.50 38.676 38.376 38.00 38.270 37.670 39.00 39.252 38.752 40.00 40.210 39.835 40.50 40.676 40.376 41.00 41.270 40.670 42.00 42.252 41.752 43.00 43.210 42.835 43.50 43.676 43.376
螺纹孔径对照表
英制粗牙(W)
規格 W1/16 -60 W3/32 -48 W1/8 -40 W5/32 -32 W3/16 -24 W7/32 -24 W1/4 -20 W5/16 -18 W3/8 -16 W7/16 -14 W1/2 -12 W9/16 -12 W5/8 -11 W3/4 -10 W7/8 -9 W1 -8 W1 1/8 -7 W1 1/4 -7 W1 3/8 -6 W1 1/2 -6 W1 5/8 -5 W1 3/4 -5 W1 7/8 -4.5 W2 -4.5 規 W1/16 W3/32 W1/8 W5/32 W3/16 W7/32 W1/4 W5/16 W3/8 W7/16 W1/2 格 -60 -48 -40 -32 -24 -24 -20 -18 -16 -14 -12 下孔徑 1.20 1.80 2.60 3.10 3.60 4.50 5.10 6.50 7.90 9.30 10.50 12.00 13.50 16.50 19.25 22.00 24.75 27.75 30.20 33.50 35.50 38.50 41.50 44.50 下孔徑 1.40 2.10 2.85 3.55 4.25 5.05 5.75 7.30 8.80 10.30 11.75 下孔徑(%) 60% 100% 1.26 1.05 1.97 1.70 2.69 2.36 3.36 2.95 3.95 3.41 4.74 4.20 5.37 4.72 6.85 6.13 8.31 7.49 9.72 8.79 11.07 9.99 12.66 11.58 14.10 12.92 17.10 15.80 20.06 18.61 22.96 21.33 25.79 23.93 28.96 27.10 31.67 29.50 34.85 32.68 37.37 34.77 40.55 37.94 43.29 40.40 46.46 43.57 下孔徑(%) 60% 100% 1.42 1.32 2.18 2.04 2.93 2.77 3.66 3.46 4.36 4.08 5.15 4.88 5.86 5.54 7.40 7.03 8.92 8.51 10.42 9.95 11.89 11.34 規格 Nr.1 -64 Nr.2 -56 Nr.3 -48 Nr.4 -40 Nr.5 -40 Nr.6 -32 Nr.8 -32 Nr.10 -24 Nr.12 -24 1/4 -20 5/16 -18 3/8 -16 7/16 -14 1/2 -13 9/16 -12 5/8 -11 3/4 -10 7/8 -9 1 -8 1 1/4 -7 1 3/8 -6 1 1/2 -6 1 3/4 -5 2 - 4.5 規 格
螺纹孔底孔尺寸表
螺纹孔底孔尺寸表螺纹孔底孔尺寸表是一种用于测量螺纹孔底的仪器，一般由刻度盘、螺纹探头、测量臂等部件组成。
在机械加工中，螺纹孔底的尺寸对于螺纹的制造和应用都具有重要的影响，因此对其进行准确的测量和控制就显得尤为重要。
下面是一份螺纹孔底孔尺寸表，供大家参考。
螺纹规格孔径(mm) 螺纹孔底孔深(mm)M2 1.6 3.5M2.5 2 4M3 2.5 4.5M4 3.3 5.5M5 4.2 6M6 5 7M8 6.8 9M10 8.5 11M12 10.2 13.5M14 12 15M16 14 17M18 15.5 19M20 17.5 21M22 19.5 23M24 21 25M27 24 28M30 27 31M33 30.5 34M36 33.5 37M39 36.5 40M42 39.5 43M45 42.5 46M48 45.5 49M52 49 53M56 53 57M60 57.5 61M64 61.5 65在使用螺纹孔底孔尺寸表进行测量时，需要选择与要测量的螺纹规格相对应的孔径和孔深数值进行读取。
通常情况下，测量过程中需要注意以下几个问题：1. 确保探头与孔底平行，避免产生偏差。
2. 测量前需要对探头和刻度盘进行校准，保证读数准确无误。
3. 在测量过程中，需要注意手部动作应轻柔平稳，避免对探头产生影响。
同时，也需要避免在测量过程中对探头进行过度伸缩或过度收缩，以免影响测量结果。
在使用螺纹孔底孔尺寸表进行测量时，需要细心认真，提高测量准确度。
同时，在机械加工中，对螺纹孔底的控制也是一项重要的工作，需要进行严密的质量控制，才能保障产品的质量和使用效果。
在机械加工领域中，螺纹的制造和应用十分广泛。
然而，由于生产过程中的误差、材料强度和机械工艺等因素的影响，螺纹的尺寸和几何尺寸都可能产生偏差，从而对螺纹的质量和使用效果产生影响。
因此，如何准确地测量和控制螺纹孔底的尺寸就显得尤为重要。
螺纹孔底的尺寸包括孔径和孔深两个参数。