常用螺纹规格尺寸表 全

常用螺纹尺寸表汇总大全

ＺＧ５５°（ＲＣ）园锥管螺纹

公称通径每寸

牙数外螺纹

顶圆内螺

纹口

径有效牙长加工牙长

1/

4″81912.711.29.714

3/8101916.114.510.115

1/2151420.318.813.218

3/4201425.724.214.519

1251132.430.416.824

1-1/

43211413919.125

1-1/

2401146.94519.126

2501158.556.823.426

2-1/

2651174.772.426.736

3801186.585.129.840

410

011111.3110.

335.843

512

511135.6135.

640.150

615

011161.516140.155

Ｋ６０°（ＮＰＴ）园锥管螺纹

公称通径每

寸

牙

数外螺

纹顶/

外顶

圆内螺

纹口

径/内

基圆有效

牙长加工

牙长NPS

1/4″1813.2-

0.211.4+

0.210.214

3/81816.6-

0.214.8+

0.210.415

1/21420.7-

0.218.5+

0.213.618

3/41426-0.

323.7+

0.213.719

111.32.6-29.7+17.42350.30.2

1-1/411.

541.3-

0.338.5+

0.31826

1-1/211.

547.4-

0.344.5+

0.318.426

211.

559.4-

0.356.6+

0.319.230

2-1/2871.6-

0.467.6+

0.328.933

3887.4-

0.483.5+

0.430.537

48112.6

-0.5108.9

+0.43343

58139.4

-0.5135.9

+0.435.750

68166.2

-0.5162.7

+0.438.455

Ｇ（５５°）园柱管螺纹

公称通每外径内径径寸

牙

数

1/41913.1511.45

3/81916.6614.95

1/21420.9518.63

3/41426.4424.32

11133.2530.29

规格螺距切削式丝锥底径挤压式丝锥底径插入式丝锥底径

规格螺距切削式丝锥底径挤压式丝锥底径插入式丝锥底径规格螺距底径

M2*0.40.4Φ1.7Φ1.8Φ2.10-80UNF0.318Φ1.40

M2.5*0.450.45Φ2.1Φ2.3Φ2.62-56UNC0.453Φ1.9Φ2.0Φ2.3

M3*0.50.5Φ2.6Φ2.8Φ3.12-64UNF0.397Φ1.9Φ2.02Φ2.3

M4*0.70.7Φ3.4Φ3.7Φ4.23-48UNC0.529Φ2.1Φ2.3Φ2.7

M5*0.80.8Φ4.3Φ4.7Φ5.23-56UNF0.453Φ2.2Φ2.32Φ2.7

M6*11Φ5.2Φ5.6Φ6.34-40UNC0.635Φ2.4Φ2.60Φ3.0

M8*1.251.25Φ6.9Φ7.5Φ8.44-48UNF0.529Φ2.4Φ2.62Φ3.0

M10*1.51.5Φ8.7Φ9.4Φ10.55-40UNC0.635Φ2.7Φ2.90Φ3.3

M12*1.751.75Φ10.5Φ11.2Φ12.56-32UNC0.794Φ2.9Φ3.15Φ3.7

M14*22Φ12.2Φ13.1Φ14.56-40UNF0.635Φ3.0Φ3.24Φ3.7

M16*22Φ14.2Φ16.58-32UNC0.793Φ3.5Φ3.80Φ4.4

M18*2.52.5Φ15.8Φ19.08-36UNF0.705Φ3.6Φ3.85Φ4.4

M20*2.52.5Φ17.8Φ21.010-24UNC1.058Φ3.9Φ4.35Φ5.1

M22*2.52.5Φ19.810-32UNF0.794Φ4.1Φ4.45Φ5.0

M24*33Φ21.312-24UNC1.058Φ4.6Φ5.00Φ5.7

M27*33Φ24.312-28UNF0.907Φ4.7Φ5.05Φ5.7

M30*3.53.5Φ26.91/4-20UNC1.27Φ5.2Φ5.75Φ6.7

1/4-28UNF0.907Φ5.5Φ5.90Φ6.6

螺纹底孔径

公制粗牙螺纹 JIS B 0209-1982(单位：mm)

螺纹尺寸 钻头直径

崁合度区分：中(注1)2级(注2)

下孔径

崁合度区分：中(注1)2级(注2)

内螺纹小径

最小直径 最大直径

M 1 0.78 (80%)

0.88 (80%)

0.98 (80%)

1.14 (80%)

1.32 (75%)

1.52 (75%)

2 1.65 (80%)

1.83 (75%)

2.13 (75%)

3 2.59 (75%)

3.01 (75%)

4 3.39 (80%)

3.85 (80%)

5 4.31 (80%)

6 × 1 5 5.13 (80%)

7 × 1 6 6.13 (80%)

8 6.85 (85%)

9 7.85 (85%)

10 8.62 (85%)

11 9.62 (85%)

12 10.40 (85%)

14 × 2 12 12.2 (85%)

16 × 2 14 14.2 (85%)

18 15.7 (85%)

20 17.7 (85%)

22 19.2 (85%)

24 × 3 21 21.2 (85%)

27 × 3 24 24.2 (85%)

30 26.6 (90%)

33 29.6 (90%)

36 × 4 32 32.1 (90%)

39 × 4 35 35.1 (90%)

37.6 (90%)

40.6 (90%)

螺纹尺寸螺纹尺寸（英寸）大径中径小径（英寸）psigMpapsigMpa5/16247.9387.2496.7925/1624456831.5456831.57/162011.11310.2879.7387/1620456831.5456831.51/22012.711.87511.3251/220456831.53626259/161814.28813.32512.5599/1618456831.53626253/41619.0518.01917.3313/416456831.53626251-1/161226.98825.61324.6951-1/16123626252900201-5/161233.33831.96331.0461-5/1612290020232016螺纹尺寸螺纹尺寸（英寸）大径中径小径（MM）大径中径小径1/16287.7327.1426.561M665.354.9171/8289.7829.1478.566M887.356.9171/41913.15712.30111.455M10109.358.9173/81916.66215.80614.95M121211.0310.3761/21420.95519.79318.631M141413.0312.3765/81422.91121.74920.587M161615.0314.3763/41426.44125.27924.117M181817.0316.3767/81430.20129.03927.877M202019.0318.37611133.24931.7730.291M222221.0320.3761-1/81137.89736.41834.939M242423.0322.3761-1/41141.9140.43138.952M272725.724.8351-1/21147.80346.32444.845M303028.727.8351-3/41153.74652.26750.788M333331.730.83521159.61458.13556.656M363634.733.835螺纹尺寸螺纹尺寸（英寸）大径中径小径（英寸）大径中径小径1/16277.8947.1426.3981/16287.7237.1426.5611/82710.2429.4898.7371/8289.7289.1478.5661/41813.61612.48711.3581/41913.15712.311.4453/81817.05515.92614.7973/81916.66215.8114.951/21421.22419.77218.3211/21420.99519.7918.6313/41426.56925.11723.6663/41426.44125.2824.117111.533.22831.46129.69411133.24931.7730.2911-1/411.541.98540.21838.4511-1/41141.9140.4338.9521-1/211.548.05446.28744.521-1/21147.80346.3244.845211.560.09258.32556.55821159.64158.1456.656基面上的螺纹直径牙型角螺纹牙数基面上的螺纹直径