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公英制螺纹规格

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最大最小最大最小M1.0*0.250.760.7850.729NO.0-80(1.524) 1.25 1.305 1.182M1.1*0.250.850.8850.829NO.1-72(1.854) 1.55 1.612 1.474M1.2*0.250.950.9850.929NO.2-64(2.184) 1.85 1.912 1.756M1.4*0.3 1.10 1.142 1.075NO.3-56(2.615) 2.10 2.197 2.025M1.6*0.35 1.25 1.321 1.221NO.4-48(2.845) 2.40 2.458 2.271M1.7*0.35 1.35 1.421 1.321NO.5-44(3.175) 2.70 2.740 2.551M1.8*0.35 1.46 1.521 1.421NO.6-40(3.505) 2.90 3.022 2.820M2.0*0.4 1.60 1.678 1.667NO.8-36(4.166) 3.50 3.606 3.404M2.2*0.45 1.75 1.838 1.713NO.10-32(4.826) 4.10 4.165 3.963M2.3*0.4 1.90 1.979 1.667NO.12-28(5.846) 4.60 4.724 4.496M2.5*0.45 2.10 2.138 2.0131/4-28 5.50 5.588 5.360M2.6*0.45 2.20 2.238 2.1135/16-24 6.907.035 6.782M3.0*0.5 2.50 2.599 2.4593/8-248.508.6368.382M3.0*0.6 2.40 2.440 2.2807/16-209.9010.0339.729M3.5*0.6 2.90 3.010 2.8501/2-2011.5011.60711.329M4.0*0.7 3.3. 3.422 3.2429/16-1812.9013.08112.751M4.0*0.75 3.25 3.326 3.1085/8-1814.5014.68114.351M4.5*0.75 3.80 3.878 3.6883/4-1617.5017.67817.323M5.0*0.8 4.20 4.334 4.1347/8-1420.5020.67520.270M6.0*0.8 4.10 4.170 3.9301-1223.2023.57123.114M6.0*1.0 5.00 5.153 4.9171-1/8-1226.5026.74626.289M7.0*1.0 6.00 6.153 5.9171-1/4-1229.5029.92129.464M8.0*1.25 6.80 6.912 6.6471-3/8-1232.8033.09632.639M9.0*1.257.807.9127.6471-1/2-1236.036.27035.814M10*1.58.508.6768.376M11*1.59.509.6769.376M12*1.7510.3010.44110.706最大最小M14*2.012.0012.21011.835M12*1.011.0011.15310.917M16*2.014.0014.21013.835M12*0.511.511.52011.400M18*2.515.5015.74415.294M14*1.512.512.67612.376M20*2517501774417294M14*1013001315312917规格标准径公制细螺纹2级牙钻孔径规格标准径2级牙钻孔径3级牙钻孔径规格标准径公制粗螺纹美制细螺纹M1.0*0.20.800.8210.783M18*1.516.5016.67616.376 M1.1*0.250.900.9210.883M18*1.017.0017.15316.917 M1.2*0.25 1.00 1.0210.983M20*2.018.0018.21017.835 M1.4*0.2 1.20 1.221 1.183M20*1.518.50018.67618.376 M1.6*0.2 1.40 1.421 1.385M20*1.019.0019.15318.917 M1.7*0.2 1.45 1.500 1.460M22*2.020.0020.21019.835 M1.8*0.2 1.60 1.621 1.583M22*1.520.5020.67620.376 M2.0*0.25 1.75 1.785 1.729M22*1.021.0021.15320.917 M2.2*0.25 1.95 1.985 1.929M24*2.022.0022.21021.835 M2.3*0.25 2.05 2.061 2.001M24*1.522.5022.67622.376 M2.5*0.35 2.20 2.221 2.121M24*1.023.0023.15322.917 M2.6*0.35 2.25 2.246 2.186M25*2.023.0023.21022.835 M3.0*0.35 2.70 2.721 2.621M25*1.523.5023.67623.376 M3.5*0.35 3.20 3.221 3.121M25*1.024.0024.15323.917 M4.0*0.5 3.50 3.599 3.459M26*1.524.5024.67624.376 M4.5*0.5 4.00 4.099 3.959M27*2.025.0025.21024.835 M5.0*0.5 4.50 4.599 4.459M27*1.525.5025.67625.376 M5.5*0.5 5.00 5.099 4.959M27*1.026.0026.15325.917 M6.0*0.75 5.30 5.378 5.188M28*2.026.0026.21025.835 M6.0*0.5 5.50 5.550 5.400M28*1.526.5026.67626.376 M7.0*0.75 6.30 6.378 6.188M28*1.027.0027.15326.917 M7.0*0.5 6.50 6.550 6.400M30*3.027.0027.21026.752 M8.0*1.07.007.153 6.917M30*2.028.0028.21027.835 M8.0*0.757.307.3787.188M30*1.528.5028.67628.376 M8.0*0.57.507.5207.400M30*1.029.0029.15328.917 M9.0*1.08.008.1537.917M32*2.030.0030.21029.835 M9.0*0.758.308.3788.188M32*1.530.5030.67630.376 M10*1.258.808.9128.647M33*3.030.0030.25229.752 M10*1.09.009.1538.917M33*2.031.0031.21030.835 M10*0.759.309.3789.188M33*1.531.5031.67631.376 M10*0.59.509.5209.400M35*1.533.5033.67633.376 M11*1.010.0010.1539.917M36*3.033.0033.25232.752 M11*0.7510.3010.37810.188M36*2.034.0034.21033.835 M12*1510501067610367M36*1534503467634376最大最小硬材软材NO.12-32 4.70 4.826 4.623W 1/8-40 2.65 2.601/4-32 5.60 5.690 5.486W 5/32-32 3.25 3.205/16-327.107.2647.087W 3/16-24 3.75 3.703*8-328.708.8658.661W 1/4-20 5.10 5.007/16-2810.2010.33810.135W 5/16-18 6.60 6.501/2-2811.8011.93811.709W 3/8-168.007.909/16-2413.2013.38613.132W 7/16-149.409.305/8-2414.8014.98614.732W 1/2-1210.7010.503/4-2017.8017.95817.678W 9/16-1212.3012.007/8-2021.0021.13320.853W 5/8-1113.7013.501-2024.024.30824.028W 3/4-1016.7016.50W 7/8-919.5019.30W 1-822.4022.00最大最小W 1-1/8-725.0024.80NO.1-64(1.854) 1.55 1.582 1.426W 1-1/4-728.3028.00NO.2-56(2.184)1.80 1.871 1.695NO.3-48(2.615) 2.10 2.146 1.941规格NO.4-40(2.845) 2.30 2.385 2.157W 3/16-24NO.5-40(3.175) 2.60 2.697 2.487W 1/4-20NO.6-32(3.505) 2.80 2.895 2.642W 5/16-18NO.8-32(4.166) 3.40 3.530 3.302W 3/8-16NO.10-24(4.826) 3.90 3.962 3.683W 7/16-14NO.12-24(5.486)4.50 4.597 4.344W 1/2-121/4-20 5.10 5.257 4.979W 9/16-125/16-18 6.60 6.731 6.4013/8-168.008.1537.798规格7/16-149.409.5509.144NO.5-401/2-1310.8011.02310.592NO.6-329/16-1212.2012.44611.989NO.8-325/8-1113.6012.86813.386NO.10-243/41016501684016307NO 1224规格4754703.60-3.574.09-4.052.70-2.672.80-2.91英制粗螺纹滚造径11.31-11.2412.89-12.828.42-8.419.92-8.855.51-5.467.01-6.95滚造径4.08-4.05英制螺纹滚造径美制粗螺纹3级牙钻孔径规格标准径3级牙钻孔径钻孔径规格标准径美制特细螺纹英制螺纹2-4-1/245.2045.59344.679规格NO.5-44NO.6-40NO.8-36M3*0.5 2.63-2.60NO.10-32M3*0.6 2.66-2.63NO.12-28M3.5*0.6 3.06-3.031/4-28M4.0*0.7 3.49-3.455/16-24M4.0*0.75 3.45-3.413/8-24M4.5*0.75 3.96-3.927/16-20M5.0*0.8 4.43-4.381/2-20M5.0*0.9 4.36-4.31M6.0*1.0 5.30-5.25规格M7.0*1.0 6.30-8.25SM1/8-40M8.0*1.07.28-7.23SM1/8-44M8.0*1.257.12-7.07SM9/64-40M9.0*1.258.12-8.07SM11/64-40M10*1.259.10-9.04SM3/16-32M10*1.58.97-8.91SM3/16-28M11*1.59.97-8.91SM7/32-32M12*1.510.92-10.87SM15/64-28M12*1.7510.79-10.73SM1/4-40M14*2.012.63-12.56SM1/4-28M16*2.0M 14.63-14.56SM9/32-28M18*2.516.31-16.23SM11/32-28M20*2.518.31-18.23SM3/8-28M22*2.520.31-20.23SM7/16-20SM7/16-16SM1/2-20SM9/16-2010.466-10.40110.037-9.96711.819-11.74913.400-13.4256.508-6.6488.092-8.4328.880-8.0155.890-5.7355.721-5.3665.003-4.9555.325-5.5704.205-4.1554.143-4.0933.128-3.0833.859-3.805滚造径2.735-2.6882.769-2.72211.82-11.78针车用螺纹8.79-8.7510.23-10.195.72-5.687.20-7.164.26-4.224.84-4.80公制螺纹3.05-3.02规格滚造径 3.66-3.63滚造径2.73-2.70使用铰刀不使用铰刀PT 1/16-28 6.10 6.20 6.244 6.384PT 1/8-288.108.508.2498.388PT 1/4-1910.7011.4010.96211.174PT 3/8-1914.2015.0014.44814.658PT 1/2-1417.6018.5017.97913.263PT 3/4-1423.0024.0023.37823.663PT 1-1129.0030.2029.45929.822PT1-1/4-1137.5038.8037.97638.339PT1-1/2-1143.4044.8043.86944.232PT2-1154.9056.555.41255.844使用铰刀不使用铰刀1/16-27 6.10 6.251/8-278.338.431/4-1810.7211.133/8-1814.2714.271/2-1417.4817.863/4-1422.6323.011-11-1/228.5818.981-1/4-11-1/237.3137.691-1/2-11-1/243.6644.042-11-1/255.5855.96RH4.5.6RH9M1.0*0.250.86一M1.1*0.250.96一M1.2*0.25 1.06一M1.4*0.3 1.24一M16*035141一NPS规格规格规格1431.081.250.880.98精度等级RH7.856.36丝攻钻孔径38.1044.4523.4229.3614.6818.266.358.7411.13美制管螺纹钻孔径英制管螺纹标准径M3.0*0.5 2.73一M3.5*0.6 3.17一M4.0*0.7 3.623.69M5.0*0.84.564.64M6.0*1.05.455.55M7.0*1.06.456.55M8.0*1.257.317.44M10*1.59.189.32M10*1.259.319.44M12*1.7511.0411.21M12*1.2511.3111.44最大最小6.50 6.632 6.4908.508.6378.49511.4011.54911.34115.0015.05414.84618.5018.77318.48924.0024.25923.97530.2030.47130.11138.8039.13238.77244.8045.02544.66556.556.83656.476规格PS 2-11PS 1-1/4-11PS 1-1/2-11PS 3/4-14PS 1-11PS 3/8-19PS 1/2-14PS 1/8-28PS 1/4-19钻孔径PS 1/16-28标准径11.38英制管螺纹9.3811.127.389.255.506.503.654.602.753.20。

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公制螺纹与英制螺纹的区别

公制螺纹与英制螺纹的区别

1.英制螺纹和公制螺纹的区别。

扣轨分为两种，一种是英制一种为公制。

将螺纹与扣轨对比，那个吻合就属于那种螺纹。

公制螺纹的分度号：0.75、1、1.25、1.5、2.0等等；英制螺纹的分度号：11、14、19、28等等。

他代表的意思不一样。

公制螺纹的数字表示螺纹的距离。

英制螺纹的数字代表每英寸的牙数。

2.公制英制螺纹的表示方法：公制：例如M27X2 （27代表螺纹的外径，2代表扣轨的螺距）英制：例如1/2NPT （1/2代表每英寸内的牙数是14，大径20.955、中径19.793、小径18.631。

英制螺纹对照表：NPT，PT，G都是管螺纹．NPT 是National (American) Pipe Thread 的縮寫，屬於美国標准的60 度锥管螺纹，用於北美地區．国家標准可查阅GB/T12716-1991PT 是Pipe Thread 的縮寫，是55 度密封圓锥管螺纹，屬惠氏螺紋家族，多用於欧洲及英联邦国家．常用於水及煤气管行业，锥度規定为1:16．国家標准可查阅GB/T7306-2000G 是55 度非螺纹密封管螺纹，屬惠氏螺紋家族．标记为G 代表圓柱螺紋．国家標准可查阅GB/T7307-2001另外螺纹中的1/4、1/2、1/8 标记是指螺紋尺寸的直徑，單位是英吋．行內人通常用分來稱呼螺紋尺寸，一吋等於８分，1/4 吋就是２分，如此類推G 好像就是管螺纹的统称(Guan)，55，60度的划分属于功能性的，俗称管圆。

即螺纹由一圆柱面加工而成。

ZG俗称管锥，即螺纹由一圆锥面加工而成，一般的水管接头都是这样的，老国标标注为Rc公制螺纹用螺距来表示，美英制螺纹用每英寸内的螺纹牙数来表示，这是它们最大的区别，公制螺纹是60度等边牙型，英制螺纹是等腰55度牙型，美制螺纹60度。

公制螺纹用公制单位，美英制螺纹用英制单位。

管螺纹主要用来进行管道的连接，其内外螺纹的配合紧密，有直管与锥管两种。

公称直径是指所连接的管道直径，显然螺纹大径比公称直径大。

螺纹管件公英制对照尺寸大全

螺纹管件公英制对照尺寸大全


83 95 52
52
64 92
102 121 5.5
7.5 15.5 23.5 29.0
80 3
86
96 106 64
64 79 110 121 146 6.0 9.0 16.5 26.0 30.0
100 4 106 114 114 79
79 79 146 152 152 6.5 11.0 18.5 27.5 33.0
Height
Bmin 6 6 8 10 11 13 14 16 17 19 21 25
Cmin 7.0 9.5 11.0 14.5 16.0 20.5 24.5 28.5 33.5 38.0 43.0 63.5
D
Lmin
S
Kmin Hmin
10
35
11.0
-
6
13
41
16.0
3
6
17
41
17.5
4
8
Sch40 STD
Sch80
Sch160 XXS
L
XS
○
○
○
○
60
○
○
90
120
○
○
150
180
32
1.1/4
40
1.1/2
50
2
国内沿用系列钢管(公制管) Metric Pipe
公称通径 Nominal Diameter
DN 10 15
20
25
32 40
50 有 A、B、C 三种型式，短管(公制管)仅有 C 型 80 L150 304 不锈钢(英制管),Φ18*2 L100 20 钢(公制管)
Head
全长 Length
英、美制螺纹标准直径、螺距参照表

英、美制螺纹标准直径、螺距参照表

6.230
6.2
6.490
6.5
－
－
1/8‐28
8.235
8.2
8.495
8.5
8.191
8.2
1/4‐19
10.941
10.9
11.341
11.4
10.945
10.9
3/8‐19
14.428
14.4
14.846
14.9
14.388
14.4
1/2‐14
17.950
18
18.489
18.5
17.943
14
20
14
18
1/2”
12.70
13
18
12
16
9/16”
14.29
12
18
12
16
5/8”
15.88
11
/
11
14
11/16”
17.46
/
16
11
14
3/4”
19.05
10
/
10
12
13/16”
20.64
/
14
/
/
7/8”
22.23
9
/
9
11
15/16”
23.81
/
12
/
/
1”
25.40
8
12
8
t＞1毫米，dz=d-（1.04～1.06)t
式中t——螺距（毫米）
dz——攻丝前钻孔直径（毫米）
d——螺纹公称直径（毫米）
2.攻英制螺纹：
螺纹公称直径铸铁与青铜钢与黄铜
3/16"～5/8" dz＝25（d-1/n) dz＝25（d-1/n)+0.1
英制螺纹

英制螺纹

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 M12×1M2.2×0.45 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英制管螺纹对照表英制锥管螺纹对照表公称直径螺距底孔直径底孔深度公称直径螺距底孔直径底孔深度G1/4 1.337 11.4 20 (19) ZG1/8 0.907 8.1 15 (28)G3/8 1.337 14.9 24 (19) ZG1/4 1.337 10.8 20 (19)G3/4 1.814 24.1 31 (14) ZG1/2 1.814 17.9 29 (14)G1 2.309 30.3 37 (11) ZG3/4 1.814 23.2 31 (14)G1-1/4 2.309 38.9 40 (11) G1 2.309 29.2 37 (11)G1-1/2 2.309 44.8 42 (11) 1-1/4 2.309 37.7 40 (11)G2 2.309 56.6 44 (11) ZG1-1/2 2.309 43.5 42 (11)ZG2 2.309 55.0 44 (11)公称直径螺距底孔直径底孔深度公称直径螺距底孔直径底孔深度G1/4 1.337 11.4 20 (19) ZG1/8 0.907 8.1 15 (28)G3/8 1.337 14.9 24 (19) ZG1/4 1.337 10.8 20 (19)G3/4 1.814 24.1 31 (14) ZG1/2 1.814 17.9 29 (14)G1 2.309 30.3 37 (11) ZG3/4 1.814 23.2 31 (14)G1-1/4 2.309 38.9 40 (11) G1 2.309 29.2 37 (11)G1-1/2 2.309 44.8 42 (11) 1-1/4 2.309 37.7 40 (11) G2 2.309 56.6 44 (11) ZG1-1/2 2.309 43.5 42 (11) ZG2 2.309 55.0 44 (11)公制螺纹(MM牙)牙深=0.6495*牙距P(牙角60度)内牙孔径= 公称直径-1.0825*PM20x2.5-6H/7g (右手)-(单头螺纹)-(公制粗牙) (公称直径20mm) (牙距2.5mm)(内螺纹配合等级6H)(外螺纹配合等级7g)左-双头-M20x1.5 (左手)-(双头螺纹)-(公制细牙) (公称直径20mm) (牙距1.5mm)美制螺纹(统一标准螺纹)牙深= 0.6495*(25.4/每吋牙数)(牙角60度)3/4-10UNC-2A(UNC粗牙)(UNF细牙)(1A 2A 3A 外牙公差配合等级)(1B 2B 3B 内牙公差配合等级)UNC美制统一标准粗牙螺纹外径3/4英吋,每英吋10牙外牙2级公差配合管螺纹(英制PT)牙深= 0.6403*(25.4/每吋牙数)(牙角55度)PT 3/4-14 (锥度管螺纹) 锥度管螺纹,锥度比1/16 3/4英吋管用,每英吋14牙螺纹(PS直螺纹)(PF细牙)牙深= 0.6403*(25.4/每吋牙数)(牙角55度)PS 3/4-14 (直形管螺纹)PF1 1/8-16 (直形管螺纹)(细牙)直形管螺纹3/4英吋管用,每英吋14牙1 1/8英吋管用,每英吋16牙管螺纹(美制NPT)(牙角60度)NPT 3/4-14 (锥形管螺纹) 锥形管螺纹,锥度比1/163/4英吋管用,每英吋14牙梯形螺纹(30度公制)TM40*6 公称直径40mm 牙距6.0mm梯形螺纹(29度爱克姆螺纹)TW26*5 外径26mm,每英吋5牙方形螺纹车牙的计算考虑条件计算公式公制牙与英制牙的转换每吋螺纹数n = 25.4 / 牙距P牙距P = 25.4 / 每吋螺纹数n因为工件材料及刀具所决定的转速转速N = (1000周速V ) / (圆周率p * 直径D )因为机器结构所决定的转速刀座快速移动的影响车牙最高转速N = 4000/ P刀座快速移动加减速的影响下刀点与退刀点的计算(不完全牙的计算) 下刀最小距离L1L1 = (牙距P ) * (主轴转速S ) / 500退刀最距离L2L2 = (牙距P ) * (主轴转速S ) / 2000牙深及牙底径d 牙深h =0.6495 * P牙底径d =公称外径D - 2 * h例题：车制外牙3/4"-10UNC 20mm长公制牙与英制牙的转换牙距P = 25.4 / (吋螺纹数n)P = 25.4 / 10 = 2.54mm因为工件材料及刀具所决定的转速外径D = 3 / 4英吋= 25.4 * (3/4) =19.05MM 转速N = (1000周速V) / (圆周率p * 直径D )N = 1000V / pD = 1000 * 120 / (3.1416*19.05)=2005 rpm (转/分)因为机器结构所决定的转速刀座快速移动的影响车牙最高转速N =4000 / P N = 4000/2.54 = 1575 rpm综合工件材料刀具及机械结构所决定的转速N = 1575 转N = 2005转两者转速选择较低者,即1575转刀座快速移动加减速的影响下刀点与退刀点的计算(不完全牙的计算) 下刀最小距离L1L1 = (牙距P) * (主轴转速S) / 500L1 = 2.54*1575/500=8.00mm退刀最小距离L2L2 = (牙距P) * (主轴转速S) / 2000L2 = 2.54*1575/2000=2.00mm牙深及牙底径d 牙深径d = 公称外径D-2*h =19.05-2*1.65 = 15.75mm。