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英制螺纹规格表

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名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径

No. 14BA10.23110.40.860.720.140.75

No. 13BA1.20.25101.61.050.90.150.95

No. 12BA1.30.2890.711.130.960.171

No. 11BA1.50.3181.931.3151.130.1851.2

No. 10BA1.70.3572.571.491.280.211.35

No. 9BA1.90.3965.121.6651.430.2351.5

No. 8BA2.20.4359.071.941.680.261.8

No. 7BA2.50.4852.922.211.920.292

No. 6BA2.80.5347.922.482.160.322.3

No. 5BA3.20.5943.052.8452.490.3552.6

No. 4BA3.60.6638.483.2052.810.3952.95

No. 3BA4.10.7334.793.663.220.443.4

No. 2BA4.70.8131.354.2153.730.4853.9

No. 1BA5.30.928.224.764.220.544.4

No. 0BA6125.45.44.80.65

基本尺寸大径螺距每英寸牙数中径小径牙型高圆弧尺寸底孔尺寸

英 寸mmmmtpimm外螺纹H1rmm

d=Dpd2=D2d3

R 1/161/16＂7.720.907287.1426.5610.5810.1256.4

R 1/81/8＂9.730.907289.1478.5660.5810.1258.4

R 1/41/4＂13.21.3371912.30111.450.8560.18411.2

R 3/83/8＂16.71.3371915.80614.950.8560.18414.75

R 1/21/2＂211.8141419.79318.631.1620.24918.25

R 3/43/4＂26.41.8141425.27924.121.1620.24923.75

R 11＂33.22.3091131.7730.291.4790.31730

R 1 1/41 1/4＂41.92.3091140.43138.951.4790.31738.5

R 1 1/21 1/2＂47.82.3091146.32444.851.4790.31744.5

R 22＂59.62.3091158.13556.661.4790.31756

R 2 1/22 1/2＂75.22.3091173.70572.231.4790.31771

R 33＂87.92.3091186.40584.931.4790.31785.5

R 44＂1132.30911111.55110.11.4790.317110.5

R 55＂1382.30911136.95135.51.4790.317136

R 66＂1642.30911162.35160.91.4790.317161.5

RC2英寸锥管螺纹，每英寸11牙，螺距=25.4/11即2.309，牙高（深）=2.309×0.64即1.479，锥度是固定的即1：16，R等于1/32乘以长度，1/32意思是，锥螺纹的锥度是1：16 ，单边就是1：32，长度意思是：定位点加有效长度，比如我定位3.0，有效长度是12.0，R=1/32 X（3+12）=0.46875英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)

螺纹代号55°圆锥管螺纹型式和尺寸

名义尺寸大径螺距每英寸牙数中径小径牙型高底孔直径

Wwmmmmtpimm外螺纹H1mmd=Dpd2=D2d31/16＂BSW1.590.423601.3151.050.271.153/32＂BSW2.380.529482.0411.7030.3381.91/8＂BSW3.180.635402.7682.3620.4062.55/32＂BSW3.970.793323.4592.9520.5073.23/16＂BSW4.761.058244.0843.4070.6773.77/32＂BSW5.561.058244.8784.2010.6774.51/4＂BSW6.351.27205.5374.7240.8135.15/16＂BSW7.941.411187.0346.1310.9046.53/8＂BSW9.531.588168.5097.4921.0177.97/16＂BSW11.11.814149.9518.7891.1629.21/2＂BSW12.72.1171211.3459.991.35510.45/8＂BSW15.92.3091114.39712.921.47913.43/4＂BSW19.12.541017.42415.81.62716.257/8＂BSW22.22.822920.41918.611.80719.251＂BSW25.43.175823.36821.342.033221 1/8＂BSW28.63.629726.25323.932.32424.51 1/4＂BSW31.83.629729.42827.12.32427.251 3/8＂BSW34.94.233632.21529.512.71130.251 1/2＂BSW38.14.233635.39132.682.71133.51 5/8＂BSW41.35.08538.02434.773.25335.51 3/4＂BSW44.55.08541.19937.953.25338.51 7/8＂BSW47.65.6454 1/244.01240.43.61441.252＂BSW50.85.6454 1/247.18743.573.61444.52 1/4＂BSW57.26.35453.08649.024.066502 1/2＂BSW63.56.35459.43655.374.066562 3/4＂BSW69.97.2573 1/265.20560.564.64761.53＂BSW76.27.2573 1/271.55666.914.647683 1/4＂BSW82.67.8163 1/477.54872.545.00573.753 1/2＂BSW88.97.8163 1/483.89978.895.005803 3/4＂BSW95.38.467389.83284.415.42285.54＂BSW1028.467396.18290.765.422924 1/4＂BSW1088.8352 7/8102.396.645.657984 1/2＂BSW1148.8352 7/8108.651035.657104.24 3/4＂BSW1219.2372 3/4114.74108.65.9151105＂BSW1279.2372 3/4121.09115.25.915116.55 1/4＂BSW1339.6772 5/8127.161216.196122.55 1/2＂BSW1409.6772 5/8133.51127.36.196128.55 3/4＂BSW14610.162 1/2139.551336.506134.56＂BSW15210.162 1/2145.9139.46.506141英制普通螺纹 (惠氏螺纹) -- 粗牙 (BSW)

牙型代号

名义尺寸大径螺距每英寸牙数中径小径牙型高底孔直径BSFmmmmtpimm外螺纹H1mmd=Dpd2=D2d3

3/16BSF4.760.794324.2553.7470.5084

7/32BSF5.560.907284.9754.3940.5814.6

1/4BSF6.350.977265.7255.10.6255.3

9/32BSF7.140.977266.5185.8930.6256.1

5/16BSF7.941.156227.1996.4590.7396.8

3/8BSF9.531.27208.7127.8990.8138.3

7/16BSF11.11.4111810.2099.3040.9049.7

1/2BSF12.71.5881611.68410.671.01711.1

9/16BSF14.31.5881613.27212.261.01712.7

5/8BSF15.91.8141414.71213.551.16214

11/16BSF17.51.8141416.315.141.16215.5

3/4BSF19.12.1171217.69316.341.35516.75

13/16BSF20.62.1171219.28117.921.35518.25

7/8BSF22.22.3091120.74719.271.47919.75

1.00BSF25.42.541023.77422.151.62722.75

1 1/8BSF28.62.822926.76924.961.80726.5

1 1/4BSF31.82.822929.94428.141.80728.75

1 3/8BSF34.93.175832.89330.862.03331.5

1 1/2BSF38.13.175836.06834.042.03334.5

1 5/8BSF41.33.175839.24337.212.03338

1 3/4BSF44.53.629742.12639.82.32440.5

2BSF50.83.629748.47646.152.32447

2 1/4BSF57.24.234654.4451.732.71153

2 1/2BSF63.54.234660.7958.082.71159

2 3/4BSF69.94.234667.1464.432.711-

3BSF76.25.08572.94669.693.253-

3 1/4BSF82.65.08579.29676.043.253-

3 1/2BSF88.95.6454 1/285.28581.673.614-

3 3/4BSF95.35.6454 1/291.63588.023.614-

4BSF1025.6454 1/297.98594.373.614-

4 1/4BSF1086.354103.8999.824.066-英制普通螺纹 (惠氏螺纹) -- 细牙 (BSF)

牙型代号

大径螺距每英寸牙数中径小径牙型高度底孔尺寸mmmmtpimm外螺纹H1mmd=Dpd2=D2d3

G 1/81/8＂9.730.907289.1478.5660.5818.7

G 1/41/4＂13.21.3371912.30111.450.85611.6

G 3/83/8＂16.71.3371915.80614.950.85615

G 1/21/2＂211.8141419.79318.631.16219

G 5/85/8＂22.91.8141421.74920.591.16220.75

G 3/43/4＂26.41.8141425.27924.121.16224.5

G 7/87/8＂30.21.8141429.03927.881.16228

G 11＂33.22.3091131.7730.291.47930.5

G 1 1/81 1/8＂37.92.3091136.41834.941.47935

合集下载

英制螺纹标准对照表

英制螺纹标准对照表

英制螺纹标准对照表

英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)

名义尺寸

牙型代号 大径 螺距 每英寸牙数 中径 小径 牙型高 底孔直径

BA mm mm tpi mm 外螺纹 H1 mm

d=D p d2=D2 d3

No. 14 BA 1

No. 13 BA

No. 12 BA 1

No. 11 BA

No. 10 BA

No. 9 BA

No. 8 BA

No. 7 BA 2

No. 6 BA

No. 5 BA

No. 4 BA

No. 3 BA

No. 2 BA

No. 1 BA

No. 0 BA 6 1 5

55°圆锥管螺纹型式和尺寸

螺纹代号 基本尺寸 大径 螺距 每英寸牙数 中径 小径 牙型高度 圆弧尺寸 底孔尺寸

英 寸 mm mm tpi mm 外螺纹 H1 r mm

d=D p d2=D2 d3

R 1/16 1/16＂ 28

R 1/8 1/8＂ 28

R 1/4 1/4＂ 19

R 3/8 3/8＂ 19

R 1/2 1/2＂ 14

R 3/4 3/4＂ 14

R 1 1＂ 11 30

R 1 1/4 1 1/4＂ 11

R 1 1/2 1 1/2＂ 11

R 2 2＂ 11 56

R 2 1/2 2 1/2＂ 11 71

R 3 3＂ 11 R 4 4＂ 11

R 5 5＂ 11 136

R 6 6＂ 11

55°圆锥管螺纹型式和尺寸

螺纹代号 基本尺寸 大径 螺距 每英寸牙数 中径 小径 牙型高度 圆弧尺寸 底孔尺寸

英制螺纹对照

英制螺纹对照

英制螺纹对照

螺丝

英制螺纹对照表Nominal size Base screw diameter

(mm)

#0 1.52

#1 1.85

#2 2.18

#3 2.51

#4 2.84

#5 3.18

#6 3.51

#7 3.84

#8 4.17

#10 4.83

#12 5.48

1/4 6.35

UNS 是英制普通粗⽛螺纹; UNF 是英制航空⼯业⽤螺纹1/4-20: 螺纹直径1/4” ,1”(25.4mm)有20个⽛

美制

规格英⼨毫⽶0-80 0.06 1.524

1-64 0.073 1.8542

2-56 0.086 2.1844

3-48 0.099 2.5146

4-40 0.112 2.8448

5-40 0.125 3.175

6-32 0.138 3.5052

8-32 0.164 4.1656

10-24 0.19 4.826

12-24 0.216 5.4864

3/16-24 0.1875 4.7625

1/4-20 0.25 6.35

5/16-18 0.3125 7.9375

3/8-16 0.375 9.525

7/16-14 0.4375 11.11251/2-13 0.5 12.7

9/16-12 0.5625 14.2875

5/8-11 0.625 15.875

11/16-12 0.6875 17.4625

3/4-10 0.75 19.05

13/16-10 0.8125 20.6375

7/8-9 0.875 22.225

15/16-9 0.9375 23.8125

1"-8 1 25.4

1.1/16-12 1.0625 26.9875

1.1/8-7 1.125 28.575

1.1/4-7 1.25 31.75

1.3/8-6 1.375 34.925

1.3/16-12 1.1875 30.1625

1.5/16-12 1.3125 33.3375

1.1/2-6 1.5 38.1

1.5/8-8 1.625 41.275

1.3/4-5 1.75 44.45

英制螺纹标准对照表 2

英制螺纹标准对照表 2

英制螺纹标准对照表

英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)

名义尺寸

牙型代号 大径 螺距 每英寸牙数 中径 小径 牙型高 底孔直径

BA mm mm tpi mm 外螺纹 H1 mm

d=D p d2=D2 d3

No. 14 BA 1

No. 13 BA

No. 12 BA 1

No. 11 BA

No. 10 BA

No. 9 BA

No. 8 BA

No. 7 BA 2

No. 6 BA

No. 5 BA

No. 4 BA

No. 3 BA

No. 2 BA

No. 1 BA

No. 0 BA 6 1 5

55°圆锥管螺纹型式和尺寸 螺纹代号 基本尺寸 大径 螺距 每英寸牙数 中径 小径 牙型高度 圆弧尺寸 底孔尺寸

英 寸 mm mm tpi mm 外螺纹 H1 r mm

d=D p d2=D2 d3

R 1/16 1/16＂ 28

R 1/8 1/8＂ 28

R 1/4 1/4＂ 19

R 3/8 3/8＂ 19

R 1/2 1/2＂ 14

R 3/4 3/4＂ 14

R 1 1＂ 11 30

R 1 1/4 1 1/4＂ 11

R 1 1/2 1 1/2＂ 11

R 2 2＂ 11 56

R 2 1/2 2 1/2＂ 11 71

R 3 3＂ 11

R 4 4＂ 11

R 5 5＂ 11 136

R 6 6＂ 11

55°圆锥管螺纹型式和尺寸

螺纹代号 基本尺寸 大径 螺距 每英寸牙数 中径 小径 牙型高度 圆弧尺寸 底孔尺寸

英制螺纹标准对照表 3

英制螺纹标准对照表 3

英制,公制螺纹对照表.

尺寸代号 每英寸牙数 螺 距 螺纹 直 径

（in) n p 大径D、d 小径D1、d1

1/16 28 0.907 7.723 6.561

1/8 28 0.907 9.728 8.566

1/4 19 1.337 13.157 11.445

3/8 19 1.337 16.662 14.95

1/2 14 1.814 20.955 18.631

5/8 14 1.814 22.911 20.587

3/4 14 1.814 26.441 24.117

7/8 14 1.814 30.201 27.877

1 11 2.309 33.249 30.291

1-1/8 11 2.309 37.897 34.939

1-1/4 11 2.309 41.91 38.952

1-1/2 11 2.309 47.803 44.845

1-3/4 11 2.309 53.746 50.788

2 11 2.309 59.614 56.656

2-1/4 11 2.309 65.71 62.752

2-1/2 11 2.309 75.184 72.226

2-3/4 11 2.309 81.534 78.578

3 11 2.309 87.884 84.926

3-1/2 11 2.309 100.33 97.372

4 11 2.309 113.03 110.072

5 11 2.309 138.43 135.472

6 11 2.309 163.83 160.872

注：1in=25.4mm

1、用螺纹密封的管螺纹其标记及各种螺纹的特征代号规定如下：

Rc—圆锥内螺纹 55度

Rp—与圆锥外螺纹配合的圆柱内螺纹

R—圆锥外螺纹

标准规定将螺纹尺寸代号写在特征代号之后，若螺纹为械旋应再加写左旋

代号LH，具体示例如下：

圆锥内螺纹：Rc1/2

左旋圆柱内螺纹：Rp1/2—LH

圆柱内螺纹与圆锥外螺纹的配合：Rp2/R2