螺纹底孔尺寸对照表大全(6篇)
来源：公文范文 发布时间：2023-05-03 19:15:07 点击：
篇一：螺纹底孔尺寸对照表大全
螺纹底孔对照表普通牙螺纹孔底孔1.0牙距公称尺寸(D)公称尺寸M2M2.5M3M4M5M6M8M10M12M14M16M18M20M24M27M30M33M36M42M48M52M56M641.622.53.34.256.88.510.2121415.517.5212426.529.53237.5434750.558平行管内螺纹Rp1/16Rp1/2Rp1/4Rp3/4Rp1/8Rp3/86.52411.414.98.514.9R------英制一般密封管螺纹Rc-----英制密封圆锥内螺纹Rp-----英制密封圆柱内螺纹G------英制非密封管螺纹M8M10M12M14M16M18M20M22M24M27M30普通细牙螺纹孔底孔1.5牙距(D)公称尺寸79111315171921232629M12M14M16M18M20M22M24M27M30M33M36M42M48底孔(D)10.512.514.516.518.520.522.525.528.531.534.540.546.52.0牙距M20M22M24M27M30M33M36M42M48M52圆锥管螺纹孔（55°）公称尺寸底孔公称尺寸(D)中国（旧）中国（新）18202225283134404650ZG1/8″ZG1/4″ZG3/8″ZG1/2″ZG3/4″ZG1″ZG11/4″ZG11/2″ZG2″ZG21/2″ZG3″Rc1/8″Rc1/4″Rc3/8″Rc1/2″Rc3/4″Rc1″Rc11/4″Rc11/2″Rc2″Rc21/2″Rc3″日本PT1/8″PT1/4″PT3/8″PT1/2″PT3/4″PT1″PT11/4″PT11/2″PT2″PT21/2″PT3″底孔(D)8.41114.51823.529.53844567284圆柱管螺纹孔（55°）公称尺寸G1/8″G1/4″G3/8″G1/2″G3/4″G1″G11/8″G11/4″G11/2″G13/4″G2″G21/4″G21/2″G23/4″G3″底孔(D)8.611.715.218.824.330.535.239.245.15156.962.9572.4578.885.2布锥管螺纹孔（60°）公称尺寸中国（旧）Z1/8″Z1/4″Z3/8″Z1/2″Z3/4″Z1″Z11/4″Z11/2″Z2″中国（新）NPT1/8″NPT1/4″NPT3/8″NPT1/2″NPT3/4″NPT1″NPT11/4″NPT11/2″NPT2″底孔(D)8.411.114.618.123.529.438.244.356.3
篇二：螺纹底孔尺寸对照表大全
螺纹底孔尺寸对照表序号12345678910111213141516171819202122232425262728293031323334353637螺纹种类及螺距M3x0.5M4x0.7M5x0.8M6x1M8x1.25M10x1.5M12x1.75M14x2M16x2M18x2.5M20x2.5M24x3M30x3.5M36x4M42x4.5M48x55/8-11UNC3/4-10UNC锥度管螺纹RC（PF)RC1/8(PT)RC1/4(PT)RC3/8(PT)RC1/2(PT)RC3/4(PT)RC1(PT)RC1+1/4(PT)RC1+1/2(PT)RC2(PT)RC2+1/2(PT)平行管螺纹G(PF)G1/8(PF)G1/4(PF)G3/8(PF)G1/2(PF)G5/8(PF)G3/4(PF)G1(PF)Φ8.6Φ11.5Φ8.8Φ11.87Φ15.38Φ19.1Φ21Φ24.6Φ30.9Φ8.2Φ10.9Φ14.4Φ18Φ23.5Φ29.5Φ38Φ44Φ55Φ71Φ8.5Φ11.1Φ14.6Φ18.5Φ23.8Φ29.9Φ38.5Φ44.6Φ55.6Φ71.6螺纹孔底直最大孔底直径径Φ2.5Φ2.59Φ3.3Φ4.2Φ5Φ6.8Φ8.5Φ10.2Φ12Φ14Φ15.5Φ17.5Φ21Φ26.5Φ32Φ37.5Φ43Φ13.6Φ16.6Φ3.42Φ4.33Φ5.2Φ6.9Φ8.6Φ10.4Φ12.1Φ14.2Φ15.7Φ17.7Φ21.2Φ26.7Φ32.2Φ37.743.2Φ13.8Φ16.8
篇三：螺纹底孔尺寸对照表大全
螺
纹
攻
牙
钻
孔
径
和
滚
造
径
对
照
表公
制
粗
螺
纹规格M1.0*0.25M1.1*0.25M1.2*0.25M1.4*0.3M1.6*0.35M1.7*0.35M1.8*0.35M2.0*0.4M2.2*0.45M2.3*0.4M2.5*0.45M2.6*0.45M3.0*0.5M3.0*0.6M3.5*0.6M4.0*0.7M4.0*0.75M4.5*0.75M5.0*0.8M5.0*0.9M6.0*1.0M7.0*1.0M8.0*1.25M9.0*1.25M10*1.5M11*1.5M12*1.75M14*2.0M16*2.0M18*2.5M20*2.5M22*2.5M24*3.0M27*3.0M30*3.5标准径0.750.850.951.101.251.351.451.601.751.902.102.202.502.402.903.303.253.804.204.105.006.006.807.808.509.5010.3012.0014.0015.5017.5019.5021.0024.0026.502级牙钻孔径最大0.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.2382.5992.4403.0103.4223.3263.8784.3344.1705.1536.1536.9127.9128.6769.67610.44112.21014.21015.74417.74419.74421.25224.25226.771最小0.7290.8290.9291.0751.2211.3211.4211.5671.7131.8672.0132.1132.4592.2802.8503.2423.1063.6884.1343.9304.9175.9176.6477.6478.3769.37610.10611.83513.83515.29417.29419.29420.75223.75226.211M12*1.0M12*0.5M14*1.5M14*1.0M15*1.5M15*1.0M16*1.5M16*1.0M17*1.5M17*1.0M18*2.0M18*1.5M18*1.0M20*2.0M20*1.5M20*1.0M22*2.0M22*1.5M22*1.0M24*2.0M24*1.5M24*1.0M25*2.0M25*1.5M25*1.0M26*1.5M27*2.0M27*1.5M27*1.0M28*2.0M28*1.5M28*1.0M30*3.0M30*2.0M30*1.5M30*1.0M32*2.0M32*1.5M33*3.0M33*2.0M33*1.5M35*1.5M36*3.0M36*2.0M36*1.5公
制
细
螺
纹规格标准径11.0011.5012.5013.0013.5014.0014.5015.0015.5016.0016.0016.5017.0018.0018.5019.0020.0020.5021.0022.0022.5023.0023.0023.5024.0024.5025.0025.5026.0026.0026.5027.0027.0028.0028.5029.0030.0030.5030.0031.0031.5033.5033.0034.0034.502级牙钻孔径最大11.15311.52012.67613.15313.67614.15314.67615.15315.67616.15316.21016.67617.15318.21018.67619.15320.21020.67621.15322.21022.67623.15323.21023.67624.15324.67625.21025.67626.15326.21026.67627.15327.25228.21028.67629.15330.21030.67630.25231.21031.67633.67633.25234.21034.676最小10.91711.40012.37612.91713.37613.91714.37614.91715.37615.91715.83516.37616.91717.83518.37618.91719.83520.37620.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.37626.91726.75227.83528.37628.91729.83530.37629.75230.83531.37633.37632.75233.83534.376公
制
迫
牙
丝
攻
钻
孔
径规格M1.0*0.25M1.1*0.25M1.2*0.25M1.4*0.3M1.6*0.35M1.7*0.35M1.8*0.35M2*0.4M2.2*0.45M2.3*0.4M2.5*0.45M2.6*0.45M3.0*0.5M3.5*0.6M4.0*0.7M5.0*0.8M6.0*1.0M7.0*1.0M8.0*1.25M10*1.5M10*1.25M12*1.75M12*1.25精度等级G4-G6G7-G8G90.860.880.960.981.061.081.241.251.411.431.511.531.611.631.781.801.951.982.082.102.252.282.352.382.732.753.173.203.623.653.694.564.604.645.455.505.556.456.506.557.317.387.449.189.259.329.319.389.4411.0411.1211.2111.3111.3811.44英制平行管用螺紋PF(G)(單位：mm)规格G1/16G(PF)1/81/43/81/25/83/47/811.1251.251.3751.51.6251.752大径7.729.7313.1616.6620.9622.9126.4430.2033.2537.9041.9144.3247.8051.9153.7559.61最大6.848.8511.8915.4019.1721.1324.6628.4230.9335.5839.5942.0149.0250.7956.66钻孔径最小6.568.5711.4514.9518.6320.5924.1227.8830.2934.9438.9541.3745.4949.6751.4357.30英
制
管
螺
纹规格PS1/16-28PS1/8-28PS1/4-19PS3/8-19PS1/2-14PS3/4-14PS1-11PS1-1/4-11PS1-1/2-11PS2-11标准径6.508.5011.4015.0018.5024.0030.2038.8044.8056.50最大6.6328.63711.54915.05418.77324.25930.47139.13245.02556.836钻孔径最小6.4908.49511.34114.84618.48923.97530.11138.77244.66556.476注：迫牙丝攻之钻孔径，在上表所列之数值，由于被加工材料之材质、硬度、形状、尺寸等之影响，多少会有所变动，因此于参考上表之同时，亦请增减若干。美
制
粗
螺
纹规格(UNC)
(螺丝牙外径)标准径2级牙钻孔径最大1.5821.8712.1462.3852.6972.8953.5303.9624.5975.2576.7318.1539.55011.02312.44612.86818.84019.76122.60625.34928.52431.11534.29039.82745.593最小1.4251.6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7989.14410.59211.98913.38616.30719.17721.97124.63827.81330.35333.52838.96444.679公
制
细
螺
纹规格M1.0*0.2M1.1*0.2M1.2*0.2M1.4*0.2M1.6*0.2M1.7*0.2M1.8*0.2M2.0*0.25M2.2*0.25M2.3*0.25M2.5*0.35M2.6*0.35M3.0*0.35M3.5*0.35M4.0*0.5M4.5*0.5M5.0*0.5M5.5*0.5M6.0*0.75M6.0*0.5M7.0*0.75M7.0*0.5M8.0*1.0M8.0*0.75M8.0*0.5M9.0*1.0M9.0*0.75M10*1.25M10*1.0M10*0.75M10*0.5M11*1.0M11*0.75M12*1.5M12*1.25标准径0.800.901.001.201.401.451.601.751.952.052.202.202.703.203.504.004.505.005.305.506.306.507.007.307.508.008.308.809.009.309.5010.0010.3010.5010.802级牙钻孔径最大0.8210.9211.0211.2211.4211.5001.6211.7851.9852.0612.2212.2462.721最小0.7830.8830.9831.1831.3831.4601.5831.7291.9292.0012.1212.1862.621美
制
细
螺
纹规格(UNF)
(螺丝牙外径)标准径2级牙钻孔径最大1.3051.6121.9122.1972.4582.7403.0223.6064.1654.7245.5887.0358.63610.03311.60713.08114.68117.67820.67523.57126.74629.92133.09636.271最小1.1821.4741.7562.0252.2712.5512.8203.4043.9634.4965.3606.7828.3829.72911.32912.75114.35117.32320.27023.11426.28929.46432.63935.8143.2213.1213.5993.4594.0993.9594.5994.4595.0994.9595.3785.1885.5505.4006.3786.1886.5506.4007.1536.9177.3787.1887.5207.4008.1537.9178.3788.1888.9128.4679.1538.9179.3789.1889.5209.40010.1539.91710.37810.18810.67610.37610.91210.647No.0-80(1.524)No.1-72(1.854)No.2-64(2.184)No.3-56(2.515)No.4-48(2.845)No.5-44(3.175)No.6-40(3.505)No.8-36(4.166)No.10-32(4.826)No.12-28(5.846)1/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-167/8-141-121-1/8-121-1/4-121-3/8-121-1/2-121.251.551.852.102.402.702.903.504.104.605.506.908.509.9011.5012.9014.5017.5020.5023.2026.5029.5032.8036.0No.1-64(1.854)No.2-56(2.184)No.3-48(2.515)No.4-40(2.845)No.5-40(3.175)No.6-32(3.505)No.8-32(4.166)No.10-24(4.826)No.12-24(5.486)1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-107/8-91-81-1/8-71-1/4-71-3/8-61-1/2-61-3/4-52-4-1/21.551.802.102.302.602.803.403.904.505.106.608.009.4010.8012.2013.6016.5019.5022.2025.0028.2030.8034.00
篇四：螺纹底孔尺寸对照表大全篇五：螺纹底孔尺寸对照表大全
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螺纹加工底孔直径对照表
本文件包含内容
公制粗螺纹2级牙底孔径对照表
公制细螺纹2级牙底孔径对照表
美制粗螺纹2级牙底孔径对照表
美制细螺纹2级牙底孔径对照表
公制迫牙丝攻钻孔径对照表
美制迫牙丝攻钻孔径对照表
美制特细螺纹2级牙底孔径对照表
英制电器螺纹底孔径对照表
英制管螺纹(PS〕底孔径对照表
英制管螺纹(PT〕底孔径对照表
美制管螺纹(NPT、NPS〕底孔径对照表
英制螺纹(UNEF〕底孔径对照表
公制螺纹〔滚造径〕底孔径对照表
针车用其所长螺纹〔滚造径〕底孔径对照表
英制圆柱管螺纹(55度〕加工一览表
英制锥管螺纹(55度〕加工一览表
布锥管螺纹加工一览表
美制UNC、UNF螺纹参数表
惠氏BSW、BSF螺纹参数表
公制螺纹特殊材质工件加工底孔径对照表
非密封管螺纹底孔径对照表
英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径
日标英制锥度管螺纹底孔径对照表
英制平行管螺纹底孔径对照表
.z.
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美制管用螺纹〔使用/不使用铰刀〕底孔径对照表
圆锥管螺纹〔新旧国标、日标〕底孔径对照表
圆柱管螺纹〔新旧国标、日标〕底孔径对照表
布锥管螺纹〔新旧国标、日标〕底孔径对照表
公制粗牙〔铜、铁、不锈钢、铝质工件〕底孔径对照表
公制细牙〔铜、铁、不锈钢、铝质工件〕底孔径对照表
60度圆锥管螺纹〔钻/镗孔〕底孔径对照表
60度圆柱管螺纹〔钻/镗孔〕底孔径对照表
公制粗螺纹
规格
M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.4M2.5×0.45M2.6×0.45M3.0×0.5M3.0×0.6标准径
0.750.850.951.101.251.351.451.601.751.902.102.202.502.402级牙钻孔径
最大
0.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.2382.5992.440最小
0.7290.8290.9851.0751.2211.3211.4211.5671.7131.8672.0132.1132.4592.280.z.
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M3.5×0.6M4.0×0.M4.0×0.75M4.5×0.75M5.0×0.M5.0×0.M6.0×1.M7.0×1.M8.0×1.25M9.0×1.25M10×1.5M11×1.5M12×1.75M14×2.M16×2.M18×2.5M20×2.5M22×2.5M24×3.M27×3.M30×3.5公制细螺纹
规格
M1.0×0.22.903.303.253.804.204.105.006.006.807.808.509.5010.3012.0014.0015.5017.5019.5021.0024.0026.53.0103.4223.3263.8784.3344.1705.1536.1536.9127.9128.6769.67610.44112.21014.21015.74417.74419.74421.25224.25226.7712.8503.2423.1063.6884.1343.9304.9175.9176.6477.6478.3769.37610.10611.83513.83515.29417.29419.29420.75223.75226.211标准径
0.802级牙钻孔径
最大
0.821最小
0.783.z.
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M1.1×0.2M1.2×0.2M1.4×0.2M1.6×0.2M1.7×0.2M1.8×0.2M2.0×0.25M2.2×0.25M2.3×0.25M2.5×0.35M2.6×0.35M3.0×0.35M3.5×0.35M4.0×0.5M4.5×0.5M5.0×0.5M5.5×0.5M6.0×0.75M6.0×0.5M7.0×0.75M7.0×0.5M8.0×1.M8.0×0.75M8.0×0.5M9.0×1.M9.0×0.750.901.001.201.401.451.601.751.952.052.202.202.703.203.504.004.505.005.305.506.306.507.007.307.508.008.300.9211.0211.2211.4211.5001.6211.7851.9852.0612.2212.2462.7213.2213.5994.0994.5995.0995.3785.5506.3786.5507.1537.3787.5208.1538.3780.8830.9831.1831.3831.4601.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.4006.1886.4006.9177.1887.4007.9178.188.z.
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M10×1.25M10×1.M10×0.75M10×0.5M11×1.M11×0.75M12×1.5M12×1.25M12×1.M12×0.5M14×1.5M14×1.M15×1.5M15×1.M16×1.5M16×1.M17×1.5M17×1.M18×2.M18×1.5M18×1.M20×2.M20×1.5M20×1.M22×2.M22×1.58.809.009.309.5010.0010.3010.5010.8011.0011.5012.5013.0013.5014.0014.5015.0015.5016.0016.0016.5017.0018.0018.5019.0020.0020.508.9129.1539.3789.52010.15310.37810.67610.91211.15311.52012.67613.15313.67614.15314.67615.15315.67616.15316.21016.67617.15318.21018.67619.15320.21020.6768.6478.9179.1889.4009.91710.18810.37610.64710.91711.40012.37612.91713.37613.91714.37614.91715.37615.91715.83516.37616.91717.83518.37618.91719.83520.376.z.
-
M22×1.M24×2.M24×1.5M24×1.M25×2.M25×1.5M25×1.M26×1.5M27×2.M27×1.5M27×1.M28×2.M28×1.5M28×1.M30×3.M30×2.M30×1.5M30×1.M32×2.M32×1.5M33×3.M33×2.M33×1.5M35×1.5M36×3.M36×2.21.0022.0022.5023.0023.0023.5024.0024.5025.0025.5026.0026.0026.5027.0027.0028.0028.5029.0030.0030.5030.0031.0031.5033.5033.0034.0021.15322.21022.67623.15323.21023.67624.15324.67625.21025.67626.15326.21026.67627.15327.25228.21028.67629.15330.21030.67630.25231.21031.67633.67633.25234.21020.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.37626.91726.75227.83528.37628.91729.83530.37629.75230.83531.37633.37632.75233.835.z.
-
M36×1.5美制粗螺纹
规格〔UNC〕
NO.1-64(1.854)NO.2-56(2.184)NO.3-48(2.515)NO.4-40(2.845)NO.5-40(3.175)NO.6-32(3.505)NO.8-32(4.166)NO.10-24(4.826)NO.12-24(5.486)1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-107/8-911-1/8-71-1/4-734.534.67634.376标准径
1.551.802.102.302.602.803.403.904.505.106.608.009.4010.8012.2013.6016.5019.5022.2025.0028.202级牙钻孔径
最大
1.5821.8712.1462.3852.6972.8953.533.9624.5975.2576.7318.1539.5511.02312.44613.86816.84019.76122.60625.34928.524最小
1.4251.6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7989.14410.59211.98913.38616.30719.17721.97124.63827.813.z.
-
1-3/8-61-1/2-61-3/4-52-4-1/2美制细螺纹
规格〔UNF〕
NO.0-80(1.524)NO.1-72(1.854)NO.2-64(2.184)NO.3-56(2.515)NO.4-48(2.845)NO.5-44(3.175)NO.6-40(3.505)NO.8-36(4.166)NO.10-32(4.826)NO.12-28(5.846)1/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-1630.8034.0039.5045.231.11534.29039.82745.59330.35333.52838.96444.67标准径
1.251.551.852.102.402.702.903.504.104.605.506.908.509.9011.5012.9014.5017.502级牙钻孔径
最大
1.3051.6121.9122.1972.4582.7403.0223.6064.1654.7245.5887.0358.63610.03311.60713.08114.68117.678最小
1.1821.4741.7562.0252.2712.5512.8203.4043.9634.4965.3606.7828.3829.72911.32912.75114.35117.323.z.
-
7/8-141-121-1/8-121-1/4-121-3/8-121-1/2-12公制迫牙丝攻钻孔径
规格
M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.4M2.5×0.45M2.6×0.45M3.0×0.5M3.5×0.6M4.0×0.M5.0×0.20.5023.2026.5029.5032.8036.020.67523.57126.74629.92133.09636.27120.27023.11426.28929.46432.63935.814精度等级
G4-G60.860.961.061.241.411.511.611.781.952.082.252.352.733.173.624.56G7-G80.880.981.081.251.431.531.631.801.982.102.282.382.753.203.654.60G93.694.64.z.
-
M6.0×1.M7.0×1.M8.0×1.25M10×1.5M10×1.25M12×1.75M12×1.25美制迫牙丝攻钻孔径
规格
NO.2-56UNCNO.3-48NO.4-40NO.5-40NO.6-32NO.8-32NO.10-24NO.12-241/4-205/16-183/8-167/16-141/2-13NO.2-64UNFNO.3-565.456.457.319.189.3111.0411.315.506.507.389.259.3811.1211.35.556.557.449.329.4411.2111.44精度等级
G4-G61.942.232.502.833.073.734.244.903.774.34.965.727.248.7410.2011.27G98.8110.3011.82.z.
-
NO.4-48NO.5-44NO.6-40NO.8-36NO.10-32NO.12-281/4-285/16-243/8-247/16-201/2-2美制特细螺纹
规格(UNEF)NO.12-321/4-325/16-323/8-327/16-281/2-289/16-245/8-243/4-207/8-201-202.562.863.163.784.394.995.857.3610.5412.13标准径
4.705.607.108.7010.2011.8013.2014.8017.8021.0024.002级牙钻孔径
最大
4.8265.6907.2648.86510.33811.93813.38614.98617.95821.13324.308最小
4.6235.4867.0878.66110.13511.70913.13214.73217.67820.85324.028.z.
-
英制电器螺纹
规格
英制管螺纹
规格
英制管螺纹
规标准径
钻孔径
标准径
钻孔径
最大
最小
格
使用纹刀时
美制管螺纹
不用纹刀时
有交牙部之长度〔最小〕中之标准长度〔最小〕中之毋毋螺牙内径
螺牙内径
钻孔径
规格
NPT使用绞刀时
1/16-271/8-271/4-183/8-181/2-143/4-141-11-1/21-1/4-11-1/21-1/2-11-1/22-11-1/2英制螺纹
6.108.3310.7214.2717.4822.6328.5837.3143.6655.5不用绞刀时
6.258.4311.1314.2717.8623.0128.9837.6944.0455.96NPS6.358.7411.1314.6818.2623.4229.3638.1044.4556.36.z.
-
规格(UNEF)W1/8-40W5/32-32W3/16-24W1/4-20W5/16-18W3/8-16W7/16-14W1/2-12W9/16-12W5/8-11W3/4-10W7/8-9W1-8W1-1/8-7W1-1/4-公制螺纹
规格
针车用螺纹
规格
钻孔径
硬材
2.653.253.755.106.608.009.4010.7012.3013.7016.7019.5022.4025.0028.3软材
2.603.203.705.006.507.909.3010.5012.0013.5016.5019.3022.0024.8028.0滚造径
滚造径
G英制圆柱管螺纹〔55°〕加工一览表
小径：d1=d-1.2807t公称直径
1/8牙/寸
2螺距〔t〕
0.90底孔
8.5深度
14.螺纹大径
9.7290.z.
-
1/43/81/25/83/47/8111/811/413/811/213/4221/421/223/4191914141414111111111111111111111.3371.3371.8141.8141.8141.8142.3092.3092.3092.3092.3092.3092.3092.3092.3092.3011.5015.0018.5020.5024.0028.0030.5035.0039.0041.5045.0051.0057.0063.0072.5079.020.020.027.527.527.527.535.035.035.035.035.035.035.035.035.035.13.158016.663020.956022.912026.442030.202033.250037.898041.912044.325047.805053.748059.616065.712075.187081.537ZG英制锥管螺纹〔55°〕加工一览表
小径：d1=d-1.2807t公称直径
1/81/43/81/23/41牙/寸
281919141411螺距
0.9071.3371.3371.8141.8142.30底孔
深度
14.020.020.027.027.035.螺纹大径
9.729013.158016.663020.956026.442033.2500.z.
-
11/411/2221/2111111112.3092.3092.3092.3035.035.035.035.41.912047.805059.616075.817注意：底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时孔深度尺寸。
〔规定为15倍螺距〕
Z圆锥管螺纹〔布锥管螺纹〕
〔60°〕
小径：d1=d-1.6t公称直径
1/161/81/43/81/23/4111/411/22牙/寸
272718181414111/2111/2111/2111/2螺距〔t〕
0.9410.9411.4111.4111.8141.8142.2092.2092.2092.20底孔
11.3-11深度
15.015.021.021.027.027.033.033.033.033.螺纹大径
7.895010.272013.572017.055021.223026.598033.228041.985048.054060.092美制螺纹〔UNC、UNF〕参数表〔60°〕
小径：d1=d-1.082532t
尺寸代公称直径公称直径每英寸粗牙数/粗牙底孔-每英寸细牙数/细牙底孔-号
inmm螺纹
深度
螺距
深度
.z.
-
1/45/163/87/161/29/165/83/47/8111/811/413/811/213/420.25000.31250.37500.43750.50000.56250.62500.75000.87501.00001.12501.25001.37501.50001.75002.0006.357.949.5311.1112.7014.2915.8819.0522.2325.4028.5831.7534.9338.1044.4550.820/1.2718/1.4116/1.5914/1.8113/1.9512/2.1211/2.3110/2.549/2.828/3.187/3.637/3.636/4.236/4.235/5.084.5/5.64￠5.0-19￠6.5-21￠7.8-24￠9.2-2728/0.9124/1.0624/1.0620/1.27￠5.5-14￠7.0-16￠8.5-16￠10.0-19￠11.5-19￠13.0-21￠14.5-21￠17.5-24￠20.5-27￠23.5-32￠26.5-32￠29.5-32￠33.0-32￠36.0-32￠10.6-2920/1.27￠12.0-3218/1.41￠13.5-3518/1.41￠16.5-3816/1.59￠19.2-4214/1.81￠22.0-4812/2.12￠25.0-5512/2.12￠28.0-5512/2.12￠30.5-6412/2.12￠38.0-6412/2.12￠39.0-76￠45.0-85注意：in为英寸符号，一英寸等于25.4毫米。
底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时孔深度尺寸。
〔规定为15倍螺距〕
惠氏螺纹〔BSW、BSF〕参数表〔55°〕
小径：d1=d-1.280655t
公称直径公称直径in1/83/16mm3.184.76每英寸粗牙数/螺粗牙底孔-深每英寸细牙数/螺细牙底孔-深距
40/0.63524/1.058度
￠2.4-10￠3.4-16距
32/0.794度
￠3.8-12.z.
-
7/321/49/325/163/87/161/29/165/811/163/47/8111/811/413/811/215/813/4221/421/25.566.357.147.949.5311.1112.7014.2915.8817.4619.0522.2325.4028.5831.7534.9338.1041.2844.4550.8057.1563.520/1.2718/1.41116/1.58814/1.81412/2.11712/2.11711/2.30911/2.30910/2.5409/2.8228/3.1757/3.6297/3.626/4.2335/5.0804.5/5.6444/6.3504/6.35￠4.8-1￠6.2-21￠7.5-24￠8.8-27￠10.0-32￠11.6-32￠13.0-35￠14.5-35￠15.8-38￠18.6-42￠21.4-48￠24.0-54￠27.2-54￠32.8-63￠38.0-76￠43.6-85￠49.0-95￠55.4-9528/0.90726/0.97726/0.97722/1.15520/1.27018/1.41116/1.58816/1.58814/1.81414/1.81412/2.11711/2.30910/2.5409/2.8229/2.8228/3.1758/3.1758/3.1757/3.6297/3.6296/4.2336/4.233￠4.4-14￠5.1-15￠6.0-15￠6.5-17￠8.0-19￠9.4-22￠10.8-24￠12.4-24￠13.6-27￠15.2-27￠16.4-32￠19.4-35￠22.2-38￠25.0-42￠28.2-42￠31.0-48￠34.2-48￠37.4-48￠40.0-54￠46.2-54￠51.8-63￠58.2-63注意：in为英寸符号，一英寸等于25.4毫米。
底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时光孔深度尺寸。
〔规定为15倍螺距〕
.z.
-
惠氏螺纹为紧固件螺纹。公称直径为螺纹大径。
普通螺纹攻螺纹前底孔的钻头直径
非密封管螺纹攻螺纹前钻底孔的钻头直径
螺纹公称直径〔"〕
每25.4mm内牙数
钻头直径〔mm〕
1/81/43/81/23/4128191914141111/413/811/2111141.31145.18.811.715.218.924.430.639.2英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径
英制锥管螺纹
公称直径
〔"〕
1/81/43/81/23/4111/411/22每25.4mm
内牙数
281919141411111111螺纹底孔明细
公
制
螺纹规格
M3螺距
0.5钻孔直径
φ2.5钻孔深度
8螺纹深度
5钻头直径
〔mm〕
8.411.214.718.323.629.738.344.155.英制锥螺纹
公称直径
〔"〕
1/81/43/81/23/4111/411/22每25.4mm
内牙数
2718181414111/2111/2111/2111/2钻头直径
〔mm〕
8.611.114.517.923.229.237.943.956.z.
-
M4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36M10×1M12×1.5M14×1.5M16×1.5M18×1.5M20×1.5M22×1.5M27×1.5M27×2M30×1.50.70.811.251.51.75222.52.52.5333.53.5411.51.51.51.51.51.51.521.5φ3.3φ4.2φ5φ6.φ8.5φ10.3φ12φ14φ15.5φ17.5φ19.5φ21φ24φ26.5φ29.5φ32φφ10.5φ12.5φ14.5φ16.5φ18.5φ20.5φ25.5φ25φ28.5814151820202525182020202022255111215171722221617171717122.z.
-
M33×2M36×2M42×2英
制
螺纹规格
Z1/16"ZG1/16"G1/16"Z1/8"ZG1/8"G1/8"Z1/4"ZG1/4"G1/4"Z3/8"ZG3/8"G3/8"Z1/2"ZG1/2"G1/2"Z3/4"ZG3/4"G3/4"Z1"ZG1"222φ31φ34φ425253222225钻孔直径
φ6.4φ6.6φ6.6φ8.φ8.6φ8.6φ11.3φ11.4φ11.4φ14.φ15φ15φ18.3φ18.6φ18.6φ23.φ24.1φ24.1φ29.φ30.3钻孔深度
1212121717171717172020202222222222223030螺纹深度
8881212121414141717171818181818182525.z.
-
G1"Z11/4"ZG11/4"G11/4"Z11/2"ZG11/2"G11/2"Z2"ZG2"G2"
螺纹底孔直径表
φ30.3φ38.5φ3φ3φ44.5φ44.φ44.φ56.6φ56.φ56.325英制平行管用螺纹〔G、PF〕
管用螺纹规格
G1/16‐2G(PF)1/8‐2G(PF)1/4‐1G(PF)3/8‐1G(PF)1/2‐14G(PF)5/8‐14G(PF)3/4‐14G(PF)7/8‐14G(PF)1‐11G(PF)11/8‐11G(PF)11/4‐11内螺纹最小径〔参考〕
底孔钻头直径
6.78.711.715.2192124.528.230.635.239.2最大尺寸
6.8438.84811.8915.39519.17221.1324.65828.41830.93135.57939.592最小尺寸
6.5618.56611.44514.9518.63120.58924.11727.87730.29134.93938.952.z.
-
G(PF)11/2‐11G(PF)13/4‐11G(PF)2‐11G(PF)21/4‐11G(PF)21/2‐11G(PF)23/4‐11G(PF)3‐11G(PF)31/2‐11G(PF)4‐11G(PF)41/2‐11G(PF)5‐11G(PF)51/2‐11G(PF)6‐11455157637278.58597─
─
─
─
─
45.48551.42857.29663.39272.86679.21685.56698.012110.712123.412136.112148.812161.51244.84550.78856.65662.75272.22678.57684.92697.372110.072122.772135.472148.172160.872美制标准管用螺纹〔NPT、NPS〕
锥度螺纹〔NPT〕
管用螺纹规格
底孔钻头直径
使用
铰刀
mm1/16‐21/8‐21/4‐13/8‐11/2‐145.948.3310.7214.2717.48不使用
铰刀
inchmm0.2346.150.3288.43inch0.2460.332mm6.358.74inch0.250.344平行螺纹(NPS〕
0.42211.130.4380.56214.270.5620.68817.860.70311.130.43814.680.57818.260.719.z.
-
3/4‐141‐111/211/4‐111/211/2‐111/22‐111/221/2‐圆锥管螺孔
攻丝前钻孔尺寸
公称尺寸
中国〔旧〕
ZG1/8″
ZG1/4″
ZG3/8″
ZG1/2″
ZG3/4″
ZG1″
ZG11/4″
ZG11/2″
ZG2″
ZG21/2″
ZG3″
圆柱管螺孔
攻丝前钻孔尺寸
公称尺寸
22.6328.5837.3143.2655.1765.40.89123.010.9061.12528.981.1411.46937.691.4841.70343.661.7192.17255.582.1882.57866.272.6023.420.92229.361.15638.11.544.451.7556.362.21967.462.656中国〔新〕
Rc1/8″
Rc1/4″
Rc3/8″
Rc1/2″
Rc3/4″
Rc1″
Rc11/4″
Rc11/2″
Rc2″
Rc21/2″
Rc3″
日本
PT1/8″
PT1/4″
PT3/8″
PT1/2″
PT3/4″
PT1″
PT11/4″
PT11/2″
PT2″
PT21/2″
PT3″
底孔d8.411.014.518.023.529.538.044.056.072.084.底孔d.z.
-
布锥管螺孔
攻丝前钻孔尺寸
公称尺寸
中国〔旧〕
Z1/8″
Z1/4″
Z3/8″
Z1/2″
Z3/4″
Z1″
Z11/4″
Z11/2″
Z2″
公制牙粗螺纹(60°)
称
呼
M1*0.25M2*0.4标准径
铜、铁
0.750.850.951.11.251.351.451.61.75D1-上限
0.80.911.161.341.441.541.71.86D1-下限
0.760.860.961.111.291.391.491.651.81不锈钢、铝
D1-上限
D1-下限
0.830.931.031.191.371.471.571.731.890.790.890.991.141.321.421.521.681.84中国〔新〕
NPT1/8″
NPT1/4″
NPT3/8″
NPT1/2″
NPT3/4″
NPT1″
NPT11/4″
NPT11/2″
NPT2″
底孔d8.411.114.618.123.529.438.244.356.3.z.
-
M3*0.5*M3*0.6M4*0.7*M4*0.75M5*0.8*M5*0.9M6*1.0M7*1.0M8*1.25M9*1.25M10*1.5M11*1.5M12*1.75M14*2.0M16*2.0M18*2.5M20*2.5M22*2.5M24*3.0M27*3.0M30*3.51.92.12.22.52.42.93.33.253.84.24.1566.87.88.59.510.3121415.517.519.5212426.522.162.262.622.473.043.453.353.94.364.25.186.186.957.958.79.710.512.2614.2615.817.819.821.324.326.81.952.112.212.572.422.983.393.293.844.34.145.126.126.897.898.69.610.412.1514.1515.6517.6519.6521.1524.1526.62.032.192.292.652.53.073.483.383.934.394.245.26.2788.759.7510.5412.314.315.8517.8519.8521.3524.3526.91.982.142.242.62.453.013.423.323.874.334.185.146.146.937.938.659.6510.4412.1814.1815.717.719.721.224.226.7.z.
-
M33*3.5M36*4.0M39*4.0M42*4.5M45*4.5M48*5.29.5323537.540.54329.832.3535.3537.940.943.429.632.135.137.6540.6543.1529.932.435.437.9540.9543.529.732.1535.1537.740.743.2公制牙细螺纹(60°)
称
呼
M1*0.2M2*0.25M3*0.35M4*0.5标准径
铜、铁
0.80.911.21.41.451.61.751.952.052.22.22.73.23.54D1-上限
0.840.941.041.241.441.521.641.812.012.082.252.272.743.243.624.12D1-下限
0.80.911.21.41.481.61.771.972.042.22.232.73.23.554.05不锈钢、铝
D1-上限
D1-下限
0.860.961.061.261.461.541.661.832.032.12.272.292.773.273.654.150.820.921.021.221.421.51.621.791.992.062.222.252.723.223.584.08.z.
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M5*0.5M6*0.75*M6*0.5M7*0.75*M7*0.5M8*1.0M8*0.75*M8*0.5M9*1.0M9*0.75M10*1.25M10*1.0M10*0.75*M10*0.5M11*1.0M11*0.75M12*1.5M12*1.25M12*1.0*M12*0.5M14*1.5M14*1.0M15*1.5M15*1.0M16*1.54.555.35.56.36.577.37.588.38.899.39.51010.310.510.81111.512.51313.51414.54.625.125.45.576.46.577.177.47.558.188.48.959.189.49.5510.210.410.7310.9511.211.5712.713.213.714.214.74.555.055.325.56.326.57.087.3278.18.328.859.089.32910.110.3210.610.8311.111.512.5713.113.5714.114.574.655.155.435.66.436.67.27.437.578.28.4399.239.459.5810.2510.4510.781111.2511.6212.7513.2513.7514.2514.754.585.085.355.536.356.537.17.357.528.028.358.99.139.379.5310.1510.3710.6510.8811.1511.5512.6213.1513.6214.1514.62.z.
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M16*1.0M17*1.5M17*1.0M18*2.0M18*1.5M18*1.0M20*2.0M20*1.5M20*1.0M22*2.0M22*1.5M22*1.0M24*2.0M24*1.5M24*1.0M25*2.0M25*1.5M25*1.0M26*1.5M27*2.0M27*1.5M27*1.0M28*2.0M28*1.5M28*1.0M30*3.01515.5161616.5171818.5192020.5212222.5232323.52424.52525.5262626.5272715.215.7516.216.2516.7317.218.2518.7319.220.2520.7321.222.2522.7323.223.2523.7324.224.7325.2525.7326.226.2526.7327.227.3515.115.616.0716.116.617.0718.118.619.0720.120.621.0722.122.623.0723.123.624.0724.625.125.626.0726.126.627.0727.1515.2515.816.2516.3116.7817.2518.318.7819.2520.320.7821.2522.322.7823.2523.323.7824.2524.7825.325.7826.2526.326.7827.2527.415.1515.6516.1216.216.6517.1218.1518.6519.1220.1520.6521.1220.1522.6523.1223.1523.6524.1224.6525.1525.6526.1226.1526.6527.1227.2.z.
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M30*2.0M30*1.5M30*1.0M32*2.0M32*1.5M33*3.0M33*2.0M33*1.5M35*1.5M36*3.0M36*2.0M36*1.5M38*1.5M39*3.0M39*2.0M39*1.5M40*3.0M40*2.0M40*1.5M42*4.0M42*3.0M42*2.0M42*1.5M45*4.0M45*3.0M45*2.02828.5293030.5303131.533.5333434.536.5363737.5373838.538394040.541424328.328.7729.2530.330.7730.3531.331.7733.7733.3534.334.7736.7736.3537.337.7737.3538.338.7738.3739.3540.340.7741.3742.354328.1528.629.130.1530.630.1531.131.633.633.1534.134.636.636.1537.137.637.1538.138.638.1539.1540.140.641.1542.1543.128.3528.8229.330.3530.8230.431.3531.8233.8233.434.3334.8236.8236.437.3537.8237.438.3538.8238.4239.440.3540.8241.4242.443.3528.228.6529.1530.230.6530.231.1531.6533.6533.234.1534.6536.6536.237.1537.6537.238.1538.6538.239.240.1540.6541.242.243.15.z.
-
M45*1.5M48*4.0M48*3.0M48*2.0M48*1.5M50*3.0M50*2.0M50*1.543.544454646.5474848.543.7744.3745.3546.346.7747.3548.348.743.644.1545.1546.146.647.1548.148.643.8244.4245.446.3546.8247.448.3548.8243.6544.245.246.1546.6547.248.1548.6560°圆锥管螺纹底孔
公称直径dZ1/8"Z1/4"Z3/8"Z1/2"Z3/4"Z1"Z11/4"Z11/2"Z2"
圆柱管螺纹底孔
d
钻孔直径
mm镗孔直径
钻头直径
钻后
不铰孔
8.711.314.818.323.729.638.544.55mm镗孔直径
钻后铰孔
镗
后
铰
孔
镗
后
不
铰
孔
8.410.71417.522.828.637.343.35528.6+0.1437.3+0.1743.3+0.1755+0.229.6+0.1438.5+0.1744.5+0.1757+0.2钻孔直径
d.z.
-
G1/8"G1/4"G3/8"G1/2"G5/8"G3/4"
8.811.715.218.92124.3G1"G11/4"G11/2"G13/4"G2"
30.530.5+0.1739.2+0.1745.1+0.1751.1+0.256.9+0.2.z.
篇六：螺纹底孔尺寸对照表大全
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螺纹加工底孔直径对照表
本文件包含内容
公制粗螺纹2级牙底孔径对照表
公制细螺纹2级牙底孔径对照表
美制粗螺纹2级牙底孔径对照表
美制细螺纹2级牙底孔径对照表
公制迫牙丝攻钻孔径对照表
美制迫牙丝攻钻孔径对照表
美制特细螺纹2级牙底孔径对照表
英制电器螺纹底孔径对照表
英制管螺纹(PS〕底孔径对照表
英制管螺纹(PT〕底孔径对照表
美制管螺纹(NPT、NPS〕底孔径对照表
英制螺纹(UNEF〕底孔径对照表
公制螺纹〔滚造径〕底孔径对照表
针车用其所长螺纹〔滚造径〕底孔径对照表
英制圆柱管螺纹(55度〕加工一览表
英制锥管螺纹(55度〕加工一览表
布锥管螺纹加工一览表
美制UNC、UNF螺纹参数表
惠氏BSW、BSF螺纹参数表
公制螺纹特殊材质工件加工底孔径对照表
非密封管螺纹底孔径对照表
英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径
日标英制锥度管螺纹底孔径对照表
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英制平行管螺纹底孔径对照表
美制管用螺纹〔使用/不使用铰刀〕底孔径对照表
圆锥管螺纹〔新旧国标、日标〕底孔径对照表
圆柱管螺纹〔新旧国标、日标〕底孔径对照表
布锥管螺纹〔新旧国标、日标〕底孔径对照表
公制粗牙〔铜、铁、不锈钢、铝质工件〕底孔径对照表
公制细牙〔铜、铁、不锈钢、铝质工件〕底孔径对照表
60度圆锥管螺纹〔钻/镗孔〕底孔径对照表
60度圆柱管螺纹〔钻/镗孔〕底孔径对照表
公制粗螺纹
规格
M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.4M2.5×0.45M2.6×0.45标准径
0.750.850.951.101.251.351.451.601.751.902.102.202级牙钻孔径
最大
0.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.238最小
0.7290.8290.9851.0751.2211.3211.4211.5671.7131.8672.0132.113..word..
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M3.0×0.5M3.0×0.6M3.5×0.6M4.0×0.7M4.0×0.75M4.5×0.75M5.0×0.8M5.0×0.9M6.0×1.0M7.0×1.0M8.0×1.25M9.0×1.25M10×1.5M11×1.5M12×1.75M14×2.0M16×2.0M18×2.5M20×2.5M22×2.5M24×3.0M27×3.0M30×3.5公制细螺纹
2.502.402.903.303.253.804.204.105.006.006.807.808.509.5010.3012.0014.0015.5017.5019.5021.0024.0026.52.5992.4403.0103.4223.3263.8784.3344.1705.1536.1536.9127.9128.6769.67610.44112.21014.21015.74417.74419.74421.25224.25226.7712.4592.2802.8503.2423.1063.6884.1343.9304.9175.9176.6477.6478.3769.37610.10611.83513.83515.29417.29419.29420.75223.75226.211..word..
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规格
M1.0×0.2M1.1×0.2M1.2×0.2M1.4×0.2M1.6×0.2M1.7×0.2M1.8×0.2M2.0×0.25M2.2×0.25M2.3×0.25M2.5×0.35M2.6×0.35M3.0×0.35M3.5×0.35M4.0×0.5M4.5×0.5M5.0×0.5M5.5×0.5M6.0×0.75M6.0×0.5M7.0×0.75M7.0×0.5M8.0×1.0M8.0×0.75标准径
0.800.901.001.201.401.451.601.751.952.052.202.202.703.203.504.004.505.005.305.506.306.507.007.302级牙钻孔径
最大
0.8210.9211.0211.2211.4211.5001.6211.7851.9852.0612.2212.2462.7213.2213.5994.0994.5995.0995.3785.5506.3786.5507.1537.378最小
0.7830.8830.9831.1831.3831.4601.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.4006.1886.4006.9177.188..word..
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M8.0×0.5M9.0×1.0M9.0×0.75M10×1.25M10×1.0M10×0.75M10×0.5M11×1.0M11×0.75M12×1.5M12×1.25M12×1.0M12×0.5M14×1.5M14×1.0M15×1.5M15×1.0M16×1.5M16×1.0M17×1.5M17×1.0M18×2.0M18×1.5M18×1.0M20×2.0M20×1.57.508.008.308.809.009.309.5010.0010.3010.5010.8011.0011.5012.5013.0013.5014.0014.5015.0015.5016.0016.0016.5017.0018.0018.507.5208.1538.3788.9129.1539.3789.52010.15310.37810.67610.91211.15311.52012.67613.15313.67614.15314.67615.15315.67616.15316.21016.67617.15318.21018.6767.4007.9178.1888.6478.9179.1889.4009.91710.18810.37610.64710.91711.40012.37612.91713.37613.91714.37614.91715.37615.91715.83516.37616.91717.83518.376..word..
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M20×1.0M22×2.0M22×1.5M22×1.0M24×2.0M24×1.5M24×1.0M25×2.0M25×1.5M25×1.0M26×1.5M27×2.0M27×1.5M27×1.0M28×2.0M28×1.5M28×1.0M30×3.0M30×2.0M30×1.5M30×1.0M32×2.0M32×1.5M33×3.0M33×2.0M33×1.519.0020.0020.5021.0022.0022.5023.0023.0023.5024.0024.5025.0025.5026.0026.0026.5027.0027.0028.0028.5029.0030.0030.5030.0031.0031.5019.15320.21020.67621.15322.21022.67623.15323.21023.67624.15324.67625.21025.67626.15326.21026.67627.15327.25228.21028.67629.15330.21030.67630.25231.21031.67618.91719.83520.37620.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.37626.91726.75227.83528.37628.91729.83530.37629.75230.83531.376..word..
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M35×1.5M36×3.0M36×2.0M36×1.5美制粗螺纹
规格〔UNC〕
NO.1-64(1.854)NO.2-56(2.184)NO.3-48(2.515)NO.4-40(2.845)NO.5-40(3.175)NO.6-32(3.505)NO.8-32(4.166)NO.10-24(4.826)NO.12-24(5.486)1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-1033.5033.0034.0034.533.67633.25234.21034.67633.37632.75233.83534.376标准径
1.551.802.102.302.602.803.403.904.505.106.608.009.4010.8012.2013.6016.502级牙钻孔径
最大
1.5821.8712.1462.3852.6972.8953.533.9624.5975.2576.7318.1539.5511.02312.44613.86816.840最小
1.4251.6951.9412.1572.4872.6423.3023.6834.3444.9796.4017.7989.14410.59211.98913.38616.307..word..
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7/8-911-1/8-71-1/4-71-3/8-61-1/2-61-3/4-52-4-1/2美制细螺纹
规格〔UNF〕
NO.0-80(1.524)NO.1-72(1.854)NO.2-64(2.184)NO.3-56(2.515)NO.4-48(2.845)NO.5-44(3.175)NO.6-40(3.505)NO.8-36(4.166)NO.10-32(4.826)NO.12-28(5.846)1/4-285/16-243/8-2419.5022.2025.0028.2030.8034.0039.5045.219.76122.60625.34928.52431.11534.29039.82745.59319.17721.97124.63827.81330.35333.52838.96444.67标准径
1.251.551.852.102.402.702.903.504.104.605.506.908.502级牙钻孔径
最大
1.3051.6121.9122.1972.4582.7403.0223.6064.1654.7245.5887.0358.636最小
1.1821.4741.7562.0252.2712.5512.8203.4043.9634.4965.3606.7828.382..word..
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7/16-201/2-209/16-185/8-183/4-167/8-141-121-1/8-121-1/4-121-3/8-121-1/2-12公制迫牙丝攻钻孔径
规格
M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.49.9011.5012.9014.5017.5020.5023.2026.5029.5032.8036.010.03311.60713.08114.68117.67820.67523.57126.74629.92133.09636.2719.72911.32912.75114.35117.32320.27023.11426.28929.46432.63935.814精度等级
G4-G60.860.961.061.241.411.511.611.781.952.08G7-G80.880.981.081.251.431.531.631.801.982.10G9..word..
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M2.5×0.45M2.6×0.45M3.0×0.5M3.5×0.6M4.0×0.7M5.0×0.8M6.0×1.0M7.0×1.0M8.0×1.25M10×1.5M10×1.25M12×1.75M12×1.25美制迫牙丝攻钻孔径
规格
NO.2-56UNCNO.3-48NO.4-40NO.5-40NO.6-32NO.8-32NO.10-24NO.12-242.252.352.733.173.624.565.456.457.319.189.3111.0411.312.282.382.753.203.654.605.506.507.389.259.3811.1211.33.694.645.556.557.449.329.4411.2111.44精度等级
G4-G61.942.232.502.833.073.734.244.90G7-G81.972.272.562.863.163.784.394.995.857.3610.5412.13标准径
4.705.607.102级牙钻孔径
最大
4.8265.6907.264最小
4.6235.4867.087..word..
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3/8-327/16-281/2-289/16-245/8-243/4-207/8-201-2英制电器螺纹
规格
英制管螺纹
规格
英制管螺纹
规格
美制管螺纹
标准径
使用纹刀不用纹刀时
时
标准径
8.7010.2011.8013.2014.8017.8021.0024.08.86510.33811.93813.38614.98617.95821.13324.308.66110.13511.70913.13214.73217.67820.85324.02钻孔径
钻孔径
最大
最小
有交牙部之长度〔最小〕中之毋标准长度〔最小〕中之毋螺牙内径
螺牙内径
钻孔径
规格
NPT使用绞刀时
1/16-276.10不用绞刀时
6.25NPS6.35..word..
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1/8-271/4-183/8-181/2-143/4-141-11-1/21-1/4-11-1/21-1/2-11-1/22-11-1/2英制螺纹
规格(UNEF)W1/8-40W5/32-32W3/16-24W1/4-20W5/16-18W3/8-16W7/16-14W1/2-12W9/16-12W5/8-11W3/4-10W7/8-98.3310.7214.2717.4822.6328.5837.3143.6655.58.4311.1314.2717.8623.0128.9837.6944.0455.968.7411.1314.6818.2623.4229.3638.1044.4556.36钻孔径
硬材
2.653.253.755.106.608.009.4010.7012.3013.7016.7019.50软材
2.603.203.705.006.507.909.3010.5012.0013.5016.5019.30..word..
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W1-8W1-1/8-7W1-1/4-公制螺纹
规格
针车用螺纹
规格
滚造径
滚造径
22.4025.0028.322.0024.8028.0G英制圆柱管螺纹〔55°〕加工一览表
小径：d1=d-1.2807t公称直径
1/81/43/81/25/83/47/8111/811/413/811/2牙/寸
281919141414141111111111螺距〔t〕
0.9071.3371.3371.8141.8141.8141.8142.3092.3092.3092.3092.30底孔
8.5011.5015.0018.5020.5024.0028.0030.5035.0039.0041.5045.0深度
14.020.020.027.527.527.527.535.035.035.035.035.螺纹大径
9.729013.158016.663020.956022.912026.442030.202133.250037.898041.912044.325047.8050..word..
..
13/4221/421/223/411111111112.3092.3092.3092.3092.3051.0057.0063.0072.5079.035.035.035.035.035.53.748059.616065.712075.187081.537ZG
英制锥管螺纹〔55°〕加工一览表
小径：d1=d-1.2807t公称直径
1/81/43/81/23/4111/411/2221/2注意：底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时孔深度尺寸。
〔规定为15倍螺距〕
Z
圆锥管螺纹〔布锥管螺纹〕
〔60°〕
牙/寸
28191914141111111111螺距
0.9071.3371.3371.8141.8142.3092.3092.3092.3092.30底孔
8.57-8.2711.5-11.115.0-14.618.6-18.224.1-23.530.3-29.639.0-38.144.8-44.056.7-55.772.2-71.1深度
14.020.020.027.027.035.035.035.035.035.螺纹大径
9.729013.158016.663020.956026.442033.250041.912047.805059.616075.817..word..
..
小径：d1=d-1.6t公称直径
1/161/81/43/81/23/4111/411/22美制螺纹〔UNC、UNF〕参数表〔60°〕
小径：d1=d-1.082532t尺寸代公称直径公称直径每英寸粗牙数/粗牙底孔-每英寸细牙数/细牙底孔-号
1/45/163/87/161/29/16in0.25000.31250.37500.43750.50000.5625mm6.357.949.5311.1112.7014.29螺纹
20/1.2718/1.4116/1.5914/1.8113/1.9512/2.12深度
￠5.0-19￠6.5-21￠7.8-24￠9.2-27螺距
28/0.9124/1.0624/1.0620/1.27深度
￠5.5-14￠7.0-16￠8.5-16￠10.0-19￠11.5-19￠13.0-21牙/寸
272718181414111/2111/2111/2111/2螺距〔t〕
0.9410.9411.4111.4111.8141.8142.2092.2092.2092.20底孔
6.4-6.18.8-8.511.3-1114.8-14.418.3-17.823.7-23.129.7-29.138.5-37.844.5-43.956.6-55.深度
15.015.021.021.027.027.033.033.033.033.螺纹大径
7.895010.272013.572017.055021.223026.598033.228041.985048.054060.092￠10.6-2920/1.27￠12.0-3218/1.41..word..
..
5/83/47/8111/811/413/811/213/420.62500.75000.87501.00001.12501.25001.37501.50001.75002.00015.8819.0522.2325.4028.5831.7534.9338.1044.4550.811/2.3110/2.549/2.828/3.187/3.637/3.636/4.236/4.235/5.084.5/5.64￠13.5-3518/1.41￠16.5-3816/1.59￠19.2-4214/1.81￠22.0-4812/2.12￠25.0-5512/2.12￠28.0-5512/2.12￠30.5-6412/2.12￠38.0-6412/2.12￠39.0-76￠45.0-85￠14.5-21￠17.5-24￠20.5-27￠23.5-32￠26.5-32￠29.5-32￠33.0-32￠36.0-32注意：in为英寸符号，一英寸等于25.4毫米。
底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时孔深度尺寸。
〔规定为15倍螺距〕
惠氏螺纹〔BSW、BSF〕参数表〔55°〕
小径：d1=d-1.280655t
公称直径公称直径in1/83/167/321/49/32mm3.184.765.566.357.14每英寸粗牙数/螺粗牙底孔-深每英寸细牙数/螺细牙底孔-深距
40/0.63524/1.0520/1.27度
￠2.4-10￠3.4-16￠4.8-1距
32/0.79428/0.90726/0.97726/0.977度
￠3.8-12￠4.4-14￠5.1-15￠6.0-15..word..
..
5/163/87/161/29/165/811/163/47/8111/811/413/811/215/813/4221/421/27.949.5311.1112.7014.2915.8817.4619.0522.2325.4028.5831.7534.9338.1041.2844.4550.8057.1563.518/1.41116/1.58814/1.81412/2.11712/2.11711/2.30911/2.30910/2.5409/2.8228/3.1757/3.6297/3.626/4.2335/5.0804.5/5.6444/6.3504/6.35￠6.2-21￠7.5-24￠8.8-27￠10.0-32￠11.6-32￠13.0-35￠14.5-35￠15.8-38￠18.6-42￠21.4-48￠24.0-54￠27.2-54￠32.8-63￠38.0-76￠43.6-85￠49.0-95￠55.4-9522/1.15520/1.27018/1.41116/1.58816/1.58814/1.81414/1.81412/2.11711/2.30910/2.5409/2.8229/2.8228/3.1758/3.1758/3.1757/3.6297/3.6296/4.2336/4.233￠6.5-17￠8.0-19￠9.4-22￠10.8-24￠12.4-24￠13.6-27￠15.2-27￠16.4-32￠19.4-35￠22.2-38￠25.0-42￠28.2-42￠31.0-48￠34.2-48￠37.4-48￠40.0-54￠46.2-54￠51.8-63￠58.2-63注意：in为英寸符号，一英寸等于25.4毫米。
底孔尺寸均为加工螺纹孔时专用尺寸。
深度尺寸均为加工螺纹孔时光孔深度尺寸。
〔规定为15倍螺距〕
..word..
..
惠氏螺纹为紧固件螺纹。公称直径为螺纹大径。
普通螺纹攻螺纹前底孔的钻头直径
非密封管螺纹攻螺纹前钻底孔的钻头直径
螺纹公称直径〔"〕
每25.4mm内牙数
钻头直径〔mm〕
英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径
英制锥管螺纹
公称直径
〔"〕
1/8每25.4mm
内牙数
28钻头直径
〔mm〕
8.4英制锥螺纹
公称直径
〔"〕
1/8每25.4mm
内牙数
27钻头直径
〔mm〕
8.61/81/42813/811/2143/41411111/413/811/2111141.31145.18.811.715.218.924.430.639.2..word..
..
1/43/81/23/4111/411/221919141411111111螺纹底孔明细
11.214.718.323.629.738.344.155.1/43/81/23/4111/411/2218181414111/2111/2111/2111/211.114.517.923.229.237.943.956公
制
螺纹规格
M3M4M5M6M8M10M12M14M16M18M20M22螺距
0.50.70.811.251.51.75222.52.52.5钻孔直径
φ2.5φ3.3φ4.2φ5φ6.7φ8.5φ10.3φ12φ14φ15.5φ17.5φ19.5钻孔深度
8814151820202525螺纹深度
5511121517172222..word..
..
M24M27M30M33M36M10×1M12×1.5M14×1.5M16×1.5M18×1.5M20×1.5M22×1.5M27×1.5M27×2M30×1.5M33×2M36×2M42×2英
制
螺纹规格
Z1/16"ZG1/16"G1/16"Z1/8"333.53.5411.51.51.51.51.51.51.521.5222φ21φ24φ26.5φ29.5φ32φ9φ10.5φ12.5φ14.5φ16.5φ18.5φ20.5φ25.5φ25φ28.5φ31φ34φ418202020202225252531617171717122222225钻孔直径
φ6.4φ6.6φ6.6φ8.7钻孔深度
12121217螺纹深度
88812..word..
..
ZG1/8"G1/8"Z1/4"ZG1/4"G1/4"Z3/8"ZG3/8"G3/8"Z1/2"ZG1/2"G1/2"Z3/4"ZG3/4"G3/4"Z1"ZG1"G1"Z11/4"ZG11/4"G11/4"Z11/2"ZG11/2"G11/2"Z2"ZG2"G2"φ8.6φ8.6φ11.3φ11.4φ11.4φ14.8φ15φ15φ18.3φ18.6φ18.6φ23.7φ24.1φ24.1φ29.7φ30.3φ30.3φ38.5φ39φ39φ44.5φ44.8φ44.8φ56.6φ56.7φ56.71717171717202020222222222222303031212141414171717181818181818252525..word..
..
螺纹底孔直径表
英制平行管用螺纹〔G、PF〕
管用螺纹规格
G1/16‐28G(PF)1/8‐28G(PF)1/4‐19G(PF)3/8‐19G(PF)1/2‐14G(PF)5/8‐14G(PF)3/4‐14G(PF)7/8‐14G(PF)1‐11G(PF)11/8‐11G(PF)11/4‐11G(PF)11/2‐11G(PF)13/4‐11G(PF)2‐11G(PF)21/4‐11G(PF)21/2‐11G(PF)23/4‐11G(PF)3‐11G(PF)31/2‐11内螺纹最小径〔参考〕
底孔钻头直径
6.78.711.715.2192124.528.230.635.239.2455157637278.58597最大尺寸
6.8438.84811.8915.39519.17221.1324.65828.41830.93135.57939.59245.48551.42857.29663.39272.86679.21685.56698.012最小尺寸
6.5618.56611.44514.9518.63120.58924.11727.87730.29134.93938.95244.84550.78856.65662.75272.22678.57684.92697.372..word..
..
G(PF)4‐11G(PF)41/2‐11G(PF)5‐11G(PF)51/2‐11G(PF)6‐11─
─
─
─
─
110.712123.412136.112148.812161.512110.072122.772135.472148.172160.872美制标准管用螺纹〔NPT、NPS〕
锥度螺纹〔NPT〕
管用螺纹规格
底孔钻头直径
使用
铰刀
mm1/16‐271/8‐271/4‐183/8‐181/2‐143/4‐141‐111/211/4‐111/211/2‐111/22‐111/221/2‐..word..
平行螺纹(NPS〕
不使用
铰刀
mm6.158.4311.1314.2717.8623.0128.9837.6943.6655.5866.2inch0.2460.3320.4380.5620.7030.9061.1411.4841.7192.1882.60mm6.358.7411.1314.6818.2623.4229.3638.144.4556.3667.46inch0.250.3440.4380.5780.7190.9221.1561.51.752.2192.656inch0.2340.3280.4220.5620.6880.8911.1251.4691.7032.1722.575.948.3310.7214.2717.4822.6328.5837.3143.2655.1765.4..
圆锥管螺孔
攻丝前钻孔尺寸
公称尺寸
中国〔旧〕
ZG1/8″
ZG1/4″
ZG3/8″
ZG1/2″
ZG3/4″
ZG1″
ZG11/4″
ZG11/2″
ZG2″
ZG21/2″
ZG3″
圆柱管螺孔
攻丝前钻孔尺寸
公称尺寸
布锥管螺孔
攻丝前钻孔尺寸
公称尺寸
中国〔旧〕
Z1/8″
中国〔新〕
NPT1/8″
底孔d8.4底孔d中国〔新〕
Rc1/8″
Rc1/4″
Rc3/8″
Rc1/2″
Rc3/4″
Rc1″
Rc11/4″
Rc11/2″
Rc2″
Rc21/2″
Rc3″
日本
PT1/8″
PT1/4″
PT3/8″
PT1/2″
PT3/4″
PT1″
PT11/4″
PT11/2″
PT2″
PT21/2″
PT3″
底孔d8.411.014.518.023.529.538.044.056.072.084...word..
..
Z1/4″
Z3/8″
Z1/2″
Z3/4″
Z1″
Z11/4″
Z11/2″
Z2″
公制牙粗螺纹(60°)称
呼
M1x0.25M1.1x0.25M1.2x0.25M1.4x0.3M1.6x0.35M1.7x0.35M1.8x0.35M2x0.4M2.2x0.45M2.3x0.4M2.5x0.45M2.6x0.45M3x0.5标准径
0.750.850.951.11.251.351.451.61.751.92.12.22.5NPT1/4″
NPT3/8″
NPT1/2″
NPT3/4″
NPT1″
NPT11/4″
NPT11/2″
NPT2″
11.114.618.123.529.438.244.356.3铜、铁
D1-上限
0.80.911.161.341.441.541.71.8622.162.262.62D1-下限
0.760.860.961.111.291.391.491.651.811.952.112.212.57不锈钢、铝
D1-上限
0.830.931.031.191.371.471.571.731.892.032.192.292.65D1-下限
0.790.890.991.141.321.421.521.681.841.982.142.242.6..word..
..
*M3x0.6M3.5x0.6M4x0.7*M4x0.75M4.5x0.75M5x0.8*M5x0.9M6x1.0M7x1.0M8x1.25M9x1.25M10x1.5M11x1.5M12x1.75M14x2.0M16x2.0M18x2.5M20x2.5M22x2.5M24x3.0M27x3.0M30x3.5M33x3.5M36x4.0M39x4.0M42x4.52.42.93.33.253.84.24.1566.87.88.59.510.3121415.517.519.5212426.529.5323537.52.473.043.453.353.94.364.25.186.186.957.958.79.710.512.2614.2615.817.819.821.324.326.829.832.3535.3537.92.422.983.393.293.844.34.145.126.126.897.898.69.610.412.1514.1515.6517.6519.6521.1524.1526.629.632.135.137.652.53.073.483.383.934.394.245.26.2788.759.7510.5412.314.315.8517.8519.8521.3524.3526.929.932.435.437.952.453.013.423.323.874.334.185.146.146.937.938.659.6510.4412.1814.1815.717.719.721.224.226.729.732.1535.1537.7..word..
..
M45x4.5M48x5.40.54340.943.440.6543.1540.9543.540.743.2公制牙细螺纹(60°)称
呼
M1x0.2M1.1x0.2M1.2x0.2M1.4x0.2M1.6x0.2*M1.7x0.2M1.8x0.2M2x0.25M2.2x0.25*M2.3x0.25M2.5x0.35*M2.6x0.35M3x0.35M3.5x0.35M4x0.5M4.5x0.5M5x0.5M5.5x0.5M6x0.75标准径
0.80.911.21.41.451.61.751.952.052.22.22.73.23.544.555.3铜、铁
D1-上限
0.840.941.041.241.441.521.641.812.012.082.252.272.743.243.624.124.625.125.4D1-下限
0.80.911.21.41.481.61.771.972.042.22.232.73.23.554.054.555.055.32不锈钢、铝
D1-上限
0.860.961.061.261.461.541.661.832.032.12.272.292.773.273.654.154.655.155.43D1-下限
0.820.921.021.221.421.51.621.791.992.062.222.252.723.223.584.084.585.085.35..word..
..
*M6x0.5M7x0.75*M7x0.5M8x1.0M8x0.75*M8x0.5M9x1.0M9x0.75M10x1.25M10x1.0M10x0.75*M10x0.5M11x1.0M11x0.75M12x1.5M12x1.25M12x1.0*M12x0.5M14x1.5M14x1.0M15x1.5M15x1.0M16x1.5M16x1.0M17x1.5M17x1.05.56.36.577.37.588.38.899.39.51010.310.510.81111.512.51313.51414.51515.5165.576.46.577.177.47.558.188.48.959.189.49.5510.210.410.7310.9511.211.5712.713.213.714.214.715.215.7516.25.56.326.57.087.3278.18.328.859.089.32910.110.3210.610.8311.111.512.5713.113.5714.114.5715.115.616.075.66.436.67.27.437.578.28.4399.239.459.5810.2510.4510.781111.2511.6212.7513.2513.7514.2514.7515.2515.816.255.536.356.537.17.357.528.028.358.99.139.379.5310.1510.3710.6510.8811.1511.5512.6213.1513.6214.1514.6215.1515.6516.12..word..
..
M18x2.0M18x1.5M18x1.0M20x2.0M20x1.5M20x1.0M22x2.0M22x1.5M22x1.0M24x2.0M24x1.5M24x1.0M25x2.0M25x1.5M25x1.0M26x1.5M27x2.0M27x1.5M27x1.0M28x2.0M28x1.5M28x1.0M30x3.0M30x2.0M30x1.5M30x1.01616.5171818.5192020.5212222.5232323.52424.52525.5262626.527272828.52916.2516.7317.218.2518.7319.220.2520.7321.222.2522.7323.223.2523.7324.224.7325.2525.7326.226.2526.7327.227.3528.328.7729.2516.116.617.0718.118.619.0720.120.621.0722.122.623.0723.123.624.0724.625.125.626.0726.126.627.0727.1528.1528.629.116.3116.7817.2518.318.7819.2520.320.7821.2522.322.7823.2523.323.7824.2524.7825.325.7826.2526.326.7827.2527.428.3528.8229.316.216.6517.1218.1518.6519.1220.1520.6521.1220.1522.6523.1223.1523.6524.1224.6525.1525.6526.1226.1526.6527.1227.228.228.6529.15..word..
..
M32x2.0M32x1.5M33x3.0M33x2.0M33x1.5M35x1.5M36x3.0M36x2.0M36x1.5M38x1.5M39x3.0M39x2.0M39x1.5M40x3.0M40x2.0M40x1.5M42x4.0M42x3.0M42x2.0M42x1.5M45x4.0M45x3.0M45x2.0M45x1.5M48x4.0M48x3.03030.5303131.533.5333434.536.5363737.5373838.538394040.541424343.5444530.330.7730.3531.331.7733.7733.3534.334.7736.7736.3537.337.7737.3538.338.7738.3739.3540.340.7741.3742.354343.7744.3745.3530.1530.630.1531.131.633.633.1534.134.636.636.1537.137.637.1538.138.638.1539.1540.140.641.1542.1543.143.644.1545.1530.3530.8230.431.3531.8233.8233.434.3334.8236.8236.437.3537.8237.438.3538.8238.4239.440.3540.8241.4242.443.3543.8244.4245.430.230.6530.231.1531.6533.6533.234.1534.6536.6536.237.1537.6537.238.1538.6538.239.240.1540.6541.242.243.1543.6544.245.2..word..
..
M48x2.0M48x1.5M50x3.0M50x2.0M50x1.54646.5474848.546.346.7747.3548.348.746.146.647.1548.148.646.3546.8247.448.3548.8246.1546.6547.248.1548.6560°圆锥管螺纹底孔
公称直径dZ1/8"Z1/4"Z3/8"Z1/2"Z3/4"Z1"Z11/4"Z11/2"Z2"
圆柱管螺纹底孔
dG1/8"
钻孔直径
8.dG1"
钻孔直径
30.5mm镗孔直径
30.5+0.1钻头直径
钻后
不铰孔
8.711.314.818.323.729.638.544.55钻后铰孔
8.410.71417.522.828.637.343.355mm镗孔直径
镗
后
铰
孔
28.6+0.1437.3+0.1743.3+0.1755+0.2镗
后
不
铰
孔
29.6+0.1438.5+0.1744.5+0.1757+0.2..word..
..
G1/4"G3/8"G1/2"G5/8"G3/4"
11.715.218.92124.3G11/4"G11/2"G13/4"G2"
39.2+0.1745.1+0.1751.1+0.256.9+0.2..word..
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