螺纹中径对照表.docx

1、螺纹中径对照表螺纹中径对照表公制螺纹基本直径内螺纹公差等级外螺纹公差大径中径小径6H7H6G中径公差小径公差中径公0,差小径公差中径公差小径公差M10*1109.358.9170,+0.1500,+0.2360,+0.1900,+0.300-0.026,-0.138-0.026,0.206M12*11211.3510.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206M14*11413.35122.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206M12*

2、1.251211.18810.6470,+0.1800,+0.2650,+0.2240,+0.335-0.028,-0.160-0.028,-0.240M14*1.251413.18812.6470,+0.1800,+0.2650,+0.2240,+0.335-0.028,-0.160-0.028,-0.240M12*1.51211.02610.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268M14*1.51413.02612.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.17

3、2-0.032,-0.268M16*1.51615.02614.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268M18*1.51817.02616.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268M20*1.52019.02618.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268M22*1.52221.02620.3760,+0.1900,+0.3000,+0.2360,+0

4、.375-0.032,-0.172-0.032,-0.268M24*1.51423.02622.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M26*1.52625.02624.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M27*1.52726.02625.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M30*1.53029.02628.3760,+0.2000,+0

5、.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M33*1.53332.02631.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M36&1.53635.02634.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M39*1.53938.02637.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M42*1.54241.02640

6、.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268M27*22725.70124.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M30*23028.70127.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M33*23331.70130.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M36*236

7、34.70133.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M39*23937.70136.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M42*24240.70139.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318M45*24543.70142.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.31

8、8M52*25250.70149.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318M60*26058.70157.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318M64*26462.70161.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318M72*27270.70169.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.0

9、38,-0.318美制NPSM螺纹（美国标准ANSI B1.20.1机械连接用直管螺纹60度）标号螺纹代号外螺纹（2A级）内螺纹（2B级）大径中径小径中径最大值最小值最大值最小值最小值最大值最小值最大值021/8-27NPSM10.0849.9069.4629.3709.0939.2469.4899.609041/4-18NPSM13.36013.13212.45412.34211.88712.21712.48712.634063/8-18NPSM 16.81516.58615.89015.77615.31615.54515.92616.076081/2-14NPSM20.90420.6501

10、9.73319.60418.97419.27919.77119.942123/4-14NPSM26.26426.01025.07724.94324.33324.63825.11825.293161-11.5NPSM32.84232.53731.41731.27030.50530.75931.46031.653201.1/4-11.5NPSM41.60541.30040.17340.02039.26839.49740.21840.416241.1/2-11.5NPSM47.67647.37146.24146.08645.33945.56846.28646.487322-11.5NPSM59.71

11、559.41158.27858.12057.37957.60758.32658.532402.1/2-8NPSM72.16171.78070.10469.91668.78369.26670.16070.409483-8NPSM88.06287.68186.00985.81684.68485.16686.06886.319NPT布锥管螺纹标号螺纹代号 基面上的直径螺纹长度端面大径大径中径小径管端至基面长有效长度02Z1/8*2710.2429.4898.7364.1026.7039.98604Z1/4*1813.61612.48711.3855.78610.20613.25406Z3/8*181

12、7.05515.92614.7976.09610.35816.67408Z1/2*1421.22319.77218.3218.12813.55620.71512Z3/4*1426.56825.11723.6668.61113.86126.03016Z1*11.533.22831.46129.69410.16017.34332.59320Z1.1/4*1.541.98540.21838.45110.66817.95341.31824Z1.1/2*11.548.05446.28744.52010.66818.37747.38732Z2*11.560.09258.32556.55811.07419.

13、21559.40040Z2.1/2*872.69970.15967.61917.32328.89271.61648Z3*888.60886.06883.52819.45630.48087.39255度英锥管螺纹标号螺纹代号基本直径内螺纹外螺纹大径中径小径中径公差小径公差公差等级AB中径公差大径公差中径公差大径公差02G1/8*289.7289.1478.5660.170，00.282，00，-0.1700，-0.2140，-0.2140，-0.21404G1/4*1913.15712.30111.4450.125，00.445，00.-0.1250，-0.2500，-0.2500，-0.250

14、06G3/8*1916.66215.80614.9500.125，00.445，00，-0.1250，-0.2500，-0.2500，-0.25008G1/2*1420.95519.79318.6310.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28410G5/8*1422.91121.74920.5870.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28412G3/4*1426.44125.27924.1170.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28416G1*113

15、3.24931.77030.2910.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36020G1.1/4*1141.91040.43138.9520.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36024G1.1/2*1147.80346.32444.8450.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36032G2*1159.61458.13556.6560.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36040G2.1/2*1175.18

16、473.70572.2260.217，00.640，00，-0.2170，-0.4340，-0.4340，-0.43448G3*1187.88486.40584.9260.217，00.640，00，-0.2170，-0.4340，-0.4340，-0.43455度英锥管螺纹标号螺纹代号基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向位移的极限偏差端面大径大径中径小径基本最大最小基本最大最小02R1/8*289.7289.1478.56644.93.16.57.45.61.19.47804R1/4*1913.15712.30111.44567.34.79.7118.41.712.78206R

17、3/8*1916.66215.80614.9506.47.75.110.111.48.81.716.26208R1/2*1420.95519.79318.6318.2106.413.21511.42.320.44312R3/4*1426.44125.27924.1179.511.37.714.516.312.72.325.84716R1*1133.24931.77030.29110.412.78.116.819.114.52.932.59920R1.1/4*1141.91040.43138.95212.71510.419.121.416.82.941.11624R1.1/2*1147.8034

18、6.32444.84512.71510.419.121.416.82.947.00932R2*1159.61458.13556.65615.918.213.623.425.721.12.958.62040R2.1/2*1175.18473.70572.22617.5211426.730.223.23.574.09048R3*1187.88486.40584.92620.624.117.129.833.326.33.586.597美制螺纹标号螺纹代号外螺纹内螺纹公差等级2A公差等级2B大径中径小径最大小径中径大径最小最大最小最大最小最小最大最小最大JIC螺纹025/1624UNF7.9107.7

19、277.2217.1276.6506.7827.0367.2497.3717.938033/8*24UNF9.4979.3148.8098.7128.2378.3828.6368.8378.9619.525047/16*20UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.113051/2*20UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.7069/16*18UNF14.25214.03113.33513.22112.57312.75113.08113.3

20、7113.5214.288083/4*16UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05107/8*14UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225121.1/16*12UNF26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988161.5/16*12UNF33.29433.00531.9231.77330.77531.03931.49631.96332.15433.3382

21、01.5/8*12UNF41.22940.9439.85539.70538.7138.98939.44639.90140.09441.275241.7/8*12UNF47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625322.1/2*12UNF63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5403812UNF76.15775.86274.77874.61873.63273.91474.37174.82675.03476.218HK1.1/2*10UNF38.0523

22、7.72436.40136.23835.02935.35735.89036.44936.66038.100ORFS螺纹049/16*18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.2880611/16*16UNF17.42717.18816.39616.27415.53515.74816.10416.43116.58917.4630813/16*16UNF20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638101*14UNSF25.35725.09524

23、.17824.03623.19523.44423.82524.22124.40725.4121.3/16*12UN30.11929.8328.75428.59827.627.86428.32128.78828.97930.163161.7/16*12UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.513201.11/16*12UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863242*12UN50.75450.46549.3849.2548.23548.5

24、1448.97149.42649.62750.8SAE螺纹065/818UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.875121.1/16*14UNF26.94726.683 25.74325.60824.7424.96825.37525.78325.96126.987其他美制螺纹9/16*16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.2887/8*12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.2252.1/4*12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15可拆式芯子与套筒连接螺纹软管编号螺纹代号外螺纹内螺纹公差等级2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大R5-049/32*327.1206.967