英制螺纹 底孔尺寸对照表
英制螺纹尺寸规格对照表
底孔直径 mm
1.15 1.9 2.5 3.2 3.7 4.5 5.1 6.5 7.9 9.2 10.4 13.4 16.25 19.25 22 24.5 27.25 30.25 33.5 35.5 38.5 41.25 44.5 50 56 61.5 68 73.75 80 85.5 92 98 104.2 110 116.5 122.5 128.5
7.938 1.156
22
7.199 6.459
9.525
1.27
20
8.712 7.899
11.113 1.411
18
10.209 9.304
12.7
1.588
16
11.684 10.668
14.288 1.588
16
13.272 12.256
15.875 1.814
14
14.712 13.549
17.463 1.814
14
16.3 15.137
19.05 2.117
12
17.693 16.336
20.638 2.117
12
19.281 17.924
22.225 2.309
11
20.747 19.269
25.4
2.54
10
23.774 22.148
28.575 2.822
9
26.769 24.963
（2006-03-13 14:38:47 ）
每英寸牙 数
中径
tpi
mm
d2=D2
28
7.142
28
9.147
19
12.301
19
15.806
14
19.793
英制螺纹尺寸规格对照表
101.6 5.645 4 1/2 97.985 94.37
107.95 6.35
4
103.886 99.822
牙型高 底孔直径
H1
mm
0.508 0.581 0.625 0.625 0.739 0.813 0.904 1.017 1.017 1.162 1.162 1.355 1.355 1.479 1.627 1.807 1.807 2.033 2.033 2.033 2.324 2.324 2.711 2.711 2.711 3.253 3.253 3.614 3.614 3.614 4.066
31.75 2.822
9
29.944 28.138
34.925 3.175
8
32.893 30.861
38.1
3.175
8
36.068 34.036
41.275 3.175
8
39.243 37.211
44.45 3.629
7
42.126 39.802
50.8
3.629
7
48.476 46.152
57.15 4.234
0.125 0.125 0.184 0.184 0.249 0.249 0.317 0.317 0.317 0.317 0.317 0.317 0.317 0.317 0.317
6.4 8.4 11.2 14.75 18.25 23.75 30 38.5 44.5 56 71 85.5 110.5 136 161.5
英制普通螺纹 (惠氏螺纹) -- 细牙 (BSW)
大径
螺距
每英寸牙 数
中径
小径
mm
mm
tpi
mm
英制螺纹规格（BA、R、BSW、BSF、BSPP、BSPF
英制螺纹规格（BA、R、BSW、BSF、BSPP、BSPF名义尺⼨⼤径螺距每英⼨⽛数中径⼩径⽛型⾼底孔直径BA mm mm tpimm 外螺纹H1mmd=D p d2=D2d3No. 14BA 10.23110.40.860.720.140.75No. 13BA 1.20.25101.6 1.050.90.150.95No. 12BA 1.30.2890.711.130.960.171No. 11BA 1.50.3181.93 1.315 1.130.185 1.2No. 10BA 1.70.3572.57 1.49 1.280.21 1.35No. 9BA 1.90.3965.121.665 1.430.235 1.5No. 8BA2.20.4359.07 1.94 1.680.26 1.8No. 7BA 2.50.4852.92 2.21 1.920.292No. 6BA 2.80.5347.922.48 2.160.32 2.3No. 5BA3.20.5943.05 2.845 2.490.355 2.6No. 4BA 3.60.6638.48 3.205 2.810.395 2.95No. 3BA4.10.7334.79 3.66 3.220.44 3.4No. 2BA 4.70.8131.35 4.215 3.730.485 3.9No. 1BA5.30.928.22 4.76 4.220.54 4.4No. 0BA6125.4 5.44.80.65基本尺⼨⼤径螺距每英⼨⽛数中径⼩径⽛型⾼度底孔尺⼨英⼨mm mm tpimm 外螺纹H1mmd=D p d2=D2d3R 1/161/16＂7.7230.907287.142 6.5610.581 6.4R 1/81/8＂9.7280.907289.1478.5660.5818.4R 1/41/4＂13.157 1.3371912.30111.4450.85611.2R 3/83/8＂16.662 1.3371915.80614.950.85614.75R 1/21/2＂20.9551.8141419.79318.631 1.16218.25R 3/43/4＂26.441 1.8141425.27924.117 1.16223.75R 11＂33.2492.3091131.7730.291 1.47930R 1 1/4 1 1/4＂41.91 2.3091140.43138.952 1.47938.5R 1 1/2 1 1/2＂47.803 2.3091146.32444.845 1.47944.5R 22＂59.614 2.3091158.13556.656 1.47956R 2 1/2 2 1/2＂75.184 2.3091173.70572.226 1.47971R 33＂87.8842.3091186.40584.926 1.47985.5R 44＂113.03 2.30911111.551110.072 1.479110.5R 55＂138.43 2.30911136.951135.472 1.479136R 66＂163.832.30911162.351160.8721.479161.5英制普通螺纹 (惠⽒螺纹)- ⼩螺纹系列 (BA)⽛型代号螺纹代号55°圆锥管螺纹型式和尺⼨螺距=25.4除以每英⼨⽛数(例：每英⼨28⽛，即P=25.4/28=0.907),⽛⾼=0.907×0.64=0.581名义尺⼨⼤径螺距每英⼨⽛数中径⼩径⽛型⾼底孔直径Ww mm mm tpimm 外螺纹H1mmd=D p d2=D2d31/16＂BSW 1.5870.42360 1.315 1.050.27 1.153/32＂BSW 2.3810.52948 2.041 1.7030.338 1.91/8＂BSW 3.1750.63540 2.768 2.3620.406 2.55/32＂BSW 3.9690.79332 3.459 2.9520.507 3.23/16＂BSW 4.762 1.05824 4.0843.4070.677 3.77/32＂BSW 5.556 1.058244.878 4.2010.677 4.51/4＂BSW 6.35 1.27205.537 4.7240.813 5.15/16＂BSW 7.938 1.411187.0346.1310.904 6.53/8＂BSW 9.525 1.588168.5097.492 1.0177.97/16＂BSW 11.113 1.814149.9518.7891.1629.21/2＂BSW 12.7 2.1171211.3459.99 1.35510.45/8＂BSW 15.876 2.3091114.39712.918 1.47913.43/4＂BSW 19.0512.541017.42415.798 1.62716.257/8＂BSW 22.226 2.822920.41918.611 1.80719.251＂BSW 25.43.175823.36821.3352.033221 1/8＂BSW 28.5763.629726.25323.929 2.32424.51 1/4＂BSW 31.751 3.629729.42827.104 2.32427.251 3/8＂BSW 34.926 4.233632.21529.505 2.71130.251 1/2＂BSW 38.1 4.233635.39132.68 2.71133.51 5/8＂BSW 41.2775.08538.02434.771 3.25335.51 3/4＂BSW 44.452 5.08541.19937.946 3.25338.51 7/8＂BSW 47.627 5.645 41/244.01240.398 3.61441.252＂BSW 50.802 5.645 4 1/247.18743.573 3.61444.52 1/4＂BSW 57.152 6.35453.08649.02 4.066502 1/2＂BSW 63.502 6.35459.43655.37 4.066562 3/4＂BSW 69.8537.257 3 1/265.20560.558 4.64761.53＂BSW 76.2037.257 3 1/271.55666.909 4.647683 1/4＂BSW 82.5537.816 3 1/477.54872.544 5.00573.753 1/2＂BSW 88.9037.816 3 1/483.89978.894 5.005803 3/4＂BSW 95.2548.467389.83284.41 5.42285.54＂BSW 101.6048.467396.18290.765.422924 1/4＂BSW 107.9548.835 2 7/8102.29796.639 5.657984 1/2＂BSW 114.3048.835 2 7/8108.647102.995.657104.24 3/4＂BSW 120.6659.237 2 3/4114.74108.625 5.9151105＂BSW 127.0059.237 2 3/4121.09115.1765.915116.55 1/4＂BSW 133.3559.677 2 5/8127.159120.963 6.196122.55 1/2＂BSW 139.7059.677 2 5/8133.509127.3136.196128.55 3/4＂BSW 146.05510.16 2 1/2139.549133.043 6.506134.56＂BSW152.40610.162 1/2145.9139.3946.506141英制普通螺纹 (惠⽒螺纹) - 粗⽛ (BSW)⽛型代号英制惠⽒螺纹的型式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BSF mm mm tpimm 外螺纹H1mmd=D p d2=D2d33/16BSF 4.7630.79432 4.255 3.7470.50847/32BSF 5.5560.90728 4.975 4.3940.581 4.61/4BSF6.350.97726 5.725 5.10.625 5.39/32BSF7.1420.97726 6.518 5.8930.625 6.15/16BSF 7.938 1.156227.199 6.4590.7396.83/8BSF 9.525 1.27208.7127.8990.8138.37/16BSF 11.113 1.4111810.2099.3040.9049.71/2BSF 12.71.5881611.68410.668 1.01711.19/16BSF 14.288 1.5881613.27212.256 1.01712.75/8BSF 15.875 1.8141414.71213.5491.1621411/16BSF 17.463 1.8141416.315.137 1.16215.53/4BSF 19.052.1171217.69316.336 1.35516.7513/16BSF 20.6382.1171219.28117.924 1.35518.257/8BSF 22.225 2.3091120.74719.269 1.47919.751.00BSF 25.4 2.541023.77422.1481.62722.751 1/8BSF 28.575 2.822926.76924.963 1.80726.51 1/4BSF 31.75 2.822929.94428.138 1.80728.751 3/8BSF 34.9253.175832.89330.861 2.03331.51 1/2BSF 38.1 3.175836.06834.036 2.03334.51 5/8BSF 41.275 3.175839.24337.211 2.033381 3/4BSF 44.45 3.629742.12639.802 2.32440.52BSF 50.8 3.629748.47646.152 2.324472 1/4BSF 57.154.234654.4451.73 2.711532 1/2BSF 63.5 4.234660.7958.08 2.711592 3/4BSF 69.85 4.234667.1464.43 2.711-3BSF 76.25.08572.94669.692 3.253-3 1/4BSF 82.55 5.08579.29676.042 3.253-3 1/2BSF 88.9 5.645 4 1/285.28581.67 3.614-3 3/4BSF 95.25 5.645 4 1/291.63588.02 3.614-4BSF 101.6 5.645 4 1/297.98594.37 3.614-4 1/4BSF107.956.354103.88699.8224.066-⽛型代号英制普通螺纹 (惠⽒螺纹) - 细⽛ (BSF)英制普通螺纹 -- 细⽛ -- BSF⼤径螺距每英⼨⽛数中径⼩径⽛型⾼度底孔尺⼨mm mm tpimm 外螺纹H1mmd=D p d2=D2d3G 1/81/8＂9.7280.907289.1478.5660.5818.7G 1/41/4＂13.157 1.3371912.30111.4450.85611.6G 3/83/8＂16.662 1.3371915.80614.950.85615G 1/21/2＂20.955 1.8141419.79318.631 1.16219G 5/85/8＂22.9111.8141421.74920.587 1.16220.75G 3/43/4＂26.441 1.8141425.27924.117 1.16224.5G 7/87/8＂30.2011.8141429.03927.877 1.16228G 11＂33.2492.3091131.7730.291 1.47930.5G 1 1/8 1 1/8＂37.897 2.3091136.41834.939 1.47935G 1 1/4 1 1/4＂41.91 2.3091140.43138.952 1.47939.5G 1 3/8 1 3/8＂44.323 2.3091142.84441.365 1.47941.5G 1 1/21 1/2＂47.803 2.3091146.32444.845 1.47945G 1 3/4 1 3/4＂53.746 2.3091152.26750.788 1.47951G 22＂59.6142.3091158.13556.656 1.47957G 2 1/4 2 1/4＂65.71 2.3091164.23162.752 1.47963G 2 1/2 2 1/2＂75.1842.3091173.70572.226 1.47972.5G 2 3/4 2 3/4＂81.534 2.3091180.05578.576 1.47979G 33＂87.884 2.3091186.40584.926 1.47985.5G 3 1/4 3 1/4＂93.98 2.3091192.50191.022 1.47991G 3 1/2 3 1/2＂100.33 2.3091198.35197.372 1.47997.75G 3 3/4 3 3/4＂106.68 2.30911105.201103.722 1.479104G 44＂113.03 2.30911111.55110.072 1.479110.5G 4 1/2 4 1/2＂125.73 2.30911124.251122.772 1.479123G 55＂138.43 2.30911136.951135.472 1.479136G 5 1/2 5 1/2＂151.132.30911149.651148.172 1.479148.5G 66＂163.832.30911162.351160.8721.479161.555°圆柱管螺纹的型式和尺⼨British Pipe Thread (惠⽒管螺纹) - 圆柱(BSPP/BSPF)螺纹代号基本尺⼨。
英制螺纹—规格_—牙型对照表
3/4＂ BSW
7/8＂ BSW
1＂
BSW
1 1/8＂ BSW
1 1/4＂ BSW
1 3/8＂ BSW
1 1/2＂ BSW
1 5/8＂ BSW
1 3/4＂ BSW
1 7/8＂ BSW
2＂
BSW
2 1/4＂ SW
2 1/2＂ BSW
2 3/4＂ BSW
3＂
BSW
3 1/4＂ BSW
3 1/2＂ BSW
2.309 11 162.351 160.872 1.479 0.317
名义尺寸
Ww
牙型代号
1/16＂ BSW
3/32＂ BSW
1/8＂ BSW
5/32＂ BSW
3/16＂ BSW
7/32＂ BSW
1/4＂ BSW
5/16＂ BSW
3/8＂ BSW
7/16＂ BSW
1/2＂ BSW
5/8＂ BSW
名义尺寸 BA 牙型代号
英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)
大径
每英寸 螺距 牙数 中径
小径
mm
mm
tpi
mm 外螺纹
d=D
p
d2=D2 d3
牙型高 H1
底孔直径 mm
No. 14 BA
1
0.23 110.4 0.86 0.72
0.14
0.75
No. 13 BA
1.2
0.25 101.6 1.05
4.4
No. 0
BA
6
1 25.4 5.4
4.8
0.6
5
55°圆锥管螺纹型式和尺寸
基本尺寸 英寸
螺纹代号
英制螺纹规格对照表
大径 mm d=D 7.723 9.728 13.157 16.662 20.955 26.441 33.249 41.91 47.803 59.614 75.184 87.884 113.03 138.43 163.83
螺距 mm
p 0.907 0.907 1.337 1.337 1.814 1.814 2.309 2.309 2.309 2.309 2.309 2.309 2.309 2.309 2.309
1.058
24
4.878 4.201
1.27
20
5.537 4.724
1.411
18
7.034 6.131
1.588
16
8.509 7.492
1.814
14
9.951 8.789
2.117
12
11.345 9.99
2.309
11
14.397 12.918
2.54
10
17.424 15.798
2.822
名义尺寸
Ww
1/16＂ 3/32＂ 1/8＂ 5/32＂ 3/16＂ 7/32＂ 1/4＂ 5/16＂ 3/8＂ 7/16＂ 1/2＂ 5/8＂ 3/4＂ 7/8＂ 1＂ 1 1/8＂ 1 1/4＂ 1 3/8＂ 1 1/2＂ 1 5/8＂ 1 3/4＂ 1 7/8＂ 2＂ 2 1/4＂ 2 1/2＂ 2 3/4＂ 3＂ 3 1/4＂ 3 1/2＂ 3 3/4＂ 4＂ 4 1/4＂ 4 1/2＂ 4 3/4＂ 5＂ 5 1/4＂ 5 1/2＂ 5 3/4＂ 6＂
11 162.351
小径 外螺纹
d3 6.561 8.566 11.445 14.95 18.631 24.117 30.291 38.952 44.845 56.656 72.226 84.926 110.072 135.472 160.872
英制螺纹标准对照表
小径
外螺纹 d3
6.561 8.566 11.445 14.95 18.631 24.117 30.291 38.952 44.845 56.656 72.226 84.926 110.072 135.472 160.872
8
23.368 21.335 2.033
22
7
26.253 23.929 2.324
24.5
2
1 1/4 ＂ 1 3/8 ＂ 1 1/2 ＂ 1 5/8 ＂ 1 3/4 ＂ 1 7/8 ＂
2＂ 2 1/4 ＂ 2 1/2 ＂ 2 3/4 ＂
3＂ 3 1/4 ＂ 3 1/2 ＂ 3 3/4 ＂
4＂ 4 1/4 ＂ 4 1/2 ＂ 4 3/4 ＂
6.4
28
9.147 8.566
0.581 0.125
8.4
19
12.301 11.445 0.856 0.184
11.2
19
15.806 14.95
0.856 0.184 14.75
14
19.793 18.631 1.162 0.249 18.25
14
25.279 24.117 1.162 0.249 23.75
tpi
mm
外螺纹
H1
mm
d2=D2
d3
60
1.315
1.05
0.27
1.15
48
2.041
1.703
英制管螺纹内径外径对照表
英制管螺纹内径外径对照表尺寸代号每寸牙数大径中径小径建议底孔基准距离牙数1/8 27 10.242 9.489 8.736 φ8.6 4.102 4.361/4 18 13.616 12.487 11.358 φ11.1 5.786 4.103/8 18 17.055 15.926 14.797 φ14.5 6.096 4.321/2 14 21.223 19.772 18.321 φ17.9 8.128 4.483/4 14 26.568 25.117 23.666 φ23.28.611 4.751 11.5 33.228 31.461 29.694 φ29.2 10.160 4.601-1/4 11.5 41.985 40.218 38.451 φ37.9 10.668 4.831-1/2 11.5 48.054 46.287 44.520 φ43.9 10.668 4.83常用螺纹规范对照表符号螺纹种类规范牙型角M 公制粗牙 ISO 261 60°S 细小螺丝 ISO R1501 60°UNC 统一牙粗牙 ISO 263 60° UNF 统一牙细牙 ISO 263 60° UNEF 统一牙特细牙 ISO 263 60° UN 统一牙固定牙 ISO 263 60° UNS 统一牙特殊牙 ----- 60°NC 美制牙粗牙 ANSI B1.1 60° NF 美制牙细牙 ANSI B1.1 60° NEF 美制牙特细牙 ANSI B1.1 60° N 美制牙固定牙 ANSI B1.1 60° NS 美制牙特殊牙 ANSI B1.1 60°BSW 英制牙粗牙 BS 84 55°BSF 英制牙细牙 BS 84 55°BC 自行车牙 JIS B0225 60°SM 针车用 JIS B0226 60°CTV 自行行车用风嘴 JIS D9422 60°TV 汽车用风嘴 JID D4207 60°BSC 英制自行车 BS 811 60°BA 英制小螺丝 BS 93 30°47°Tr 公制爱克母牙 ISO 2902 30°TW 爱克姆牙 JIS B0222 29°ACME 爱克姆牙 ANSI B1.5 29°STUB-ACME 浅牙爱克姆 ANSI B1.8 29° C 平行管用螺纹 ISO 228/1 55°BSPF 英制平行管螺纹 BS 2779 55°PF 英制平行管螺纹 IS B0202 55°R 管用推拔管用 ISO 7/1 55°1/16Rc 管用推拔内螺纹 ISO 7/1 55°1/16Rp 管用平行内螺纹 ISO 7/1 55°PT 推拔管用 JIS B0203 55°1/16PS 平行内螺纹 JIS B0203 55°BSP 英制管牙 BS 21.2779 55°NPT 美制一般推拔管用 ANSI B2.1 60°1/16 NPTR 美制栏杆接头用 ANSI B2.1 60°1/16 NPS 美制一般平行管用 ANSI B2.1 60° NPSM 美制平行管用装配器用 ANSI B2.1 60° NPSL 美制锁紧螺帽用 ANSI B2.1 60°NPSH 美制水管用 ANSI B2.1 60°NPSC 美制管接头用 ANSI B2.1 60°NH 美制消防水管用 ANSI B2.1 60°NPSF 美制干封管用平行内螺纹 ANSI B2.1 60°NPTI 美制干封管用平行 ANSI B2.1 60° NPTF 美制干封管用推拔 ANSI B2.1 60°1/16 NGT 美制瓦斯用推拔 ANSI B57.1 60°1/16 NGS 美制瓦斯用平行 ANSI B57.1 60°NGO 美制瓦斯用出口 ANSI B57.1 60°SGT 美制瓦斯用特殊 ANSI B57.1 60°1/8E 电灯泡用 JIS C7709 圆V 瓦斯桶凡而用 JIS B8245/6 55°3/26C 薄铜电线管用 JIS B0204 80°常用规格（公制）M1.2*0.25 M2.5*0.45 M6*0.75 M10*0.75 M1.4*0.3 M2.6*0.45 M6*1 M10*1M1.6*0.35 M3*0.5 M7*0.75 M10*1.25M1.7*0.25 M3*0.6 M7*1 M10*1.5M1.7*0.35 M3.5*0.6 M8*0.75 M11*1M1.8*0.35 M4*0.5 M8*1 M11*1.5M2*0.4 M4*0.7 M8*1.25 12*1M2.2*0.45 M5*0.5 M9*1 M12*1.25M2.3*0.45 M5*0.8 M9*1.25 M12*1.5常用规格（美制）0-80UNF 5-40UNC 10-32UNF 5/16〃-32UNEF1-64UNC 5-44UNV 12-24UNC 3/8〃-16UNC1-72UNF 6-32UNC 12-28UNF 3/8〃-24UNF2-56UNC 6-40UNF 12-32UNEF 3/8〃-32UNEF2-64UNF 5/32〃-32UNC 1/4〃-20UNC 7/16〃-14UNC 3-48UNC 8-32UNC 1/4〃-28UNF 7/16〃-20UNF3-56UNF 8-36UNF 1/4〃-32UNEF 7/16〃-28UNEF4-40UNC 3/16〃-24UNC 5/16〃-18UNC 1/2〃-13UNC 4-48UNF 10-24UNC 5/16〃-24UNF 1/2〃-20UNF 常用规格（英制）1/8〃-40 1/2〃-12 1〃-8 2〃-4.55/32〃-32 9/16〃-12 1-1/8〃-7 2-1/8〃-43/16〃-24 5/8〃-11 1-1/4〃-7 2-1/4〃-47/32〃-24 11/16〃-11 1-3/8〃-6 2-1/2〃-41/4〃-20 3/4〃-16 1-1/2〃-6 2-3/4〃-45/16〃-18 13/16〃-10 1-5/8〃-5 3-1/4〃-43/8〃-16 7/8〃-9 1-1/4〃-5 3-1/2〃-47/16〃-14 15/16〃-9 1-7/8〃-4.5 3-3/4〃-44〃-4。