普通螺纹公差表

1、普通螺纹（公差）基本常识常 用 偏 差偏差代号（内螺纹）M161.5-6H外螺纹代号为小写字母内螺纹代号为大写字母内 螺 纹外 螺 纹上偏差 ES上偏差 es下偏差 EI下偏差 ei基本偏差=EI基本偏差=esES=EI+T(公差)ei=es-T(公差)小径公差代号 TD1大径公差代号 Td中径公差代号 TD2中径公差代号 Td2小径代号 D1小径代号 d1中径代号 D2中径代号 d2大径代号 D大径代号 d螺距 Pd=D=公称直径中经d2=D2=d-0.6495P小经D1=d1=d-1.0825PM16-5g6gM 16 5g 6g中 经 公 差 带 代 号顶 径 （ 大 经 ） 公 差 带

2、 代 号顶径：指外螺纹大经和内螺纹小径M 1 0 -6 H中 经 和 顶 径 （ 小 径 ） 公 差 带 代 号M 16 5g 6g中 经 公 差 带 代 号顶 径 （ 大 经 ） 公 差 带 代 号M161.5-6gP=1.5，6g表示大经和中经公差代号相同。大经偏差为：es=-0.032,ei=-0.268。中径偏差为：es=-0.032,ei=-0.108。常 用 偏 差表表1-11-1 内内外外螺螺纹纹的的基基本本偏偏差差 单单位位（mm）表表1-21-2 内内螺螺纹纹小小径径公公差差( (T TD1D1) ) 单单位位（mm）螺螺距距P(mm)P(mm)基基本本偏偏差差螺螺距距P(m

3、m)P(mm)内内螺螺纹纹D D2、D D1外外螺螺纹纹d d、d d2G GH He ef fg gh h0.20.2EIEIEIEIeseseseseseseses0.250.250.20.2+17+170 0-17-170 00.30.30.250.25+18+180 0-18-180 00.350.350.30.3+18+180 0-18-180 00.40.40.350.35+19+190 0-34-34-19-190 00.450.450.40.4+19+190 0-34-34-19-190 00.50.50.450.45+20+200 0-35-35-20-200 00.60.6

4、0.50.5+20+200 0-50-50-36-36-20-200 00.70.70.60.6+21+210 0-53-53-36-36-21-210 00.750.750.70.7+22+220 0-56-56-38-38-22-220 00.80.80.750.75+22+220 0-56-56-38-38-22-220 01 10.80.8+24+240 0-60-60-38-38-24-240 01 1+26+260 0-60-60-40-40-26-260 01.251.25+28+280 0-63-63-42-42-28-280 01.51.5+32+320 0-67-67-45

5、-45-32-320 01.751.75+34+340 0-71-71-48-48-34-340 02 2+38+380 0-71-71-52-52-38-380 02.52.5+42+420 0-80-80-58-58-42-420 03 3+48+480 0-85-85-63-63-48-480 03.53.5+53+530 0-90-90-70-70-38-380 04 4+60+600 0-95-95-75-75-42-420 04.54.5+63+630 0-100-100-80-80-48-480 05 5+71+710 0-106-106-85-85-71-710 05.55.5

6、+75+750 0-112-112-90-90-75-750 06 6+80+800 0-118-118-95-95-80-800 0公公差差等等级级螺螺距距P(mm)P(mm)公公差差等等级级4 45 56 67 78 84 45 56 67 78 8383848481.251.251701702122122652653353354254254545565671711.51.51901902362363003003753754744745353676785851.751.75212212265265335335425425586586636380801001002 2236236300300

7、375375475475600600717190901121122.52.528028035535545045056056071071080801001001251253 331531540040050050063063080080090901121121401401801803.53.53553554504505605607107109009001001001251251601602002004 43753754754756006007507509509501121121401401801802242244.54.542542553053067067085085010601060118118

8、1501501901902362365 5450450560560710710900900112011201251251601602002002502503153155.55.5475475600600750750950950118011801501501901902362363003003753756 65005006306308008001000100012501250表表1-21-2 内内螺螺纹纹小小径径公公差差( (T TD1D1) ) 单单位位（mm）表表1-31-3 内内螺螺纹纹中中径径公公差差( (T TD2D2) ) 单单位位（mm）表表1-41-4 外外螺螺纹纹大大径径公公差

9、差( (T Td d) ) 单单位位（mm）公公称称直直径径螺螺距距P(mm)P(mm)公公 差差 等等 级级螺螺距距P(mm)P(mm)D D（mmmm） 4 45 56 67 78 80.20.20.990.991.41.40.20.240400.250.250.250.25454556560.30.30.30.34848606075750.350.351.41.42.82.80.20.242420.40.40.250.25484860600.450.450.350.355353676785850.50.50.40.45656717190900.60.60.450.456060757595

10、950.70.72.82.85.65.60.350.355656717190900.750.750.50.5636383831001001251250.80.80.60.6717190901121121401401 10.70.7757595951181181501500.750.75757595951181181501500.80.880801001001251251601602002005.65.611.211.20.50.5717190901121121401400.750.7585851061061321321701701 195951181181501501901902362361.

11、251.251001001251251601602002002502501.51.511211214014018018022422428028011.211.222.422.40.50.5757595951181181501500.750.7590901121121401401801801 11001001251251601602002002502501.251.251121121401401801802242242802801.51.51181181501501901902362363003001.751.751251251601602002002502503153152 213213217

12、01702122122652653353352.52.514014018018022422428028035535522.422.445450.750.7595951181181501501901901 11061061321321701702122121.51.51251251601602002002502503153152 21401401801802242242802803553553 31701702122122652653353354254253.53.51801802242242802803553554504504 41901902362363003003753754754754.

13、54.5200200250250315315400400500500454590901 11181181501501801802362361.51.51321321701702122122652653353352 21501501901902362363003003753753 31801802242242802803553554504504 42002002502503153154004005005005 52122122652653353354254255305305.55.52242242802803553554504505605606 6236236300300375375475475

14、60060090901801801.51.51401401801802242242802803553552 21601602002002502503153154004003 31901902362363003003753754754754 42122122652653353354254255305306 62502503153154004005005006306301801803553552 21801802242242802803553554504503 32122122652653353354254255305304 42362363003003753754754756006006 626

15、526533533542542553053067067022.422.44545 表表1-51-5 外外螺螺纹纹中中径径公公差差( (T Td2d2) ) 单单位位（mm）公公差差等等级级螺螺距距P(mm)P(mm)公公差差等等级级公公称称直直径径螺螺距距P(mm)P(mm)4 46 68 84 46 68 8D D（mmmm）363656561.251.25132132212212335335 424267671.51.51501502362363753750.990.991.41.40.20.2484875751.751.751701702652654254250.250.25535385

16、852 21801802802804504500.30.3606095952.52.52122123353355305301.41.42.82.80.20.263631001003 32362363753756006000.250.2567671061063.53.52652654254256796790.350.3580801251254 43003004754757507500.40.490901401404.54.53153155005008008000.450.4590901401405 53353355305308508502.82.85.65.60.350.359595150150

17、2362365.55.53553555605609009000.50.51121121801802802806 63753756006009509500.60.60.70.70.750.750.80.85.65.611.211.20.50.50.750.751 11.251.251.51.511.211.222.422.40.50.50.750.751 11.251.251.51.51.751.752 22.52.522.422.445450.750.751 11.51.52 23 3表表1-41-4 外外螺螺纹纹大大径径公公差差( (T Td d) ) 单单位位（mm）3.53.54 44.

18、54.5454590901 11.51.52 23 34 45 55.55.56 690901801801.51.52 23 34 46 61801803553552 23 34 46 622.422.44545表表1-61-6 螺螺纹纹的的旋旋合合长长度度 单单位位（mmmm）公公 差差 等等 级级公公称称直直径径D D、d d（mmmm）3 34 45 56 67 78 89 9 24243030383848485.65.6262634344242535328283636454556562525323240405050282836364545565632324040505063638080

19、11.211.234344242535367678585363645455656717190903434424253536767858538384848606075759595424253536767858510610645455656717190901121124545565671719090112112484860607575959511811815015019019022.422.442425353676785851061065050636380801001001251255656717190901121121401401801802242246060757595951181181501

20、50190190236236676785851061061321321701702122122652654545565671719090112112535367678585106106132132606075759595118118150150190190236236 一一般般不不标标旋旋合合长长度度 ，表表示示中中等等 ；必必要要时时标标注注其其代代号号，如如M10-5g6g-SM10-5g6g-S ；特特殊殊需需要要时时可可标标注注数数值值 ， 例例： M10-M10-7g6g-307g6g-30。6767858510610613213217017021221226526571719090

21、112112140140180180224224280280757595951181181501501901902362363003008080100100125125160160200200250250315315858510610613213217017021221226526533533556567171909011211214014063638080100100125125160160200200250250757595951181181501501901902362363003008585106106132132170170212212265265335335100100125125

22、160160200200250250315315400400 表表1-51-5 外外螺螺纹纹中中径径公公差差( (T Td2d2) ) 单单位位（mm）10610613213217017021221226526533533542542511211214014018018022422428028035535545045011811815015019019023623630030037537547547571719090112112140140180180224224808010010012512516016020020025025031531590901121121401401801802242

23、242802803553551061061321321701702122122652653353354254251181181501501901902362363003003753754754751251251601602002002502503153154004005005001321321701702122122652653353354254255305301401401801802242242802803553554504505605608585106106132132170170212212265265335335959511811815015019019023623630030037

24、5375112112140140180180224224280280355355450450125125160160200200250250315315400400500500150150190190236236300300375375475475600600106106132132170170212212265265335335425425125125160160200200250250315315400400500500140140180180224224280280355355450450560560160160200200250250315315400400500500630630表表

25、1-71-7 公公 差差 带带 的的 选选 用用螺螺距距P(mm)P(mm)旋旋合合长长度度内内螺螺纹纹选选用用公公差差带带S S短短N N中中等等L L长长精精度度公公差差带带位位置置 G G S S11.211.20.50.51.61.61.61.64.74.74.74.7精精密密0.750.752.42.42.42.47.17.17.17.1中中等等( (5G5G) )1 13 33 39 99 9粗粗糙糙1.251.254 44 4121212121.51.55 55 51515151522.422.40.50.51.81.81.81.85.45.45.45.4外外螺螺纹纹选选用用公公

26、差差带带0.750.752.72.72.72.78.18.18.18.1精精度度公公差差带带位位置置 e e1 13.83.83.83.811111111S S1.251.254.54.54.54.513131313精精密密1.51.55.65.65.65.616161616中中等等1.751.756 66 618181818粗粗糙糙2 28 88 8242424242.52.51010101030303030精精度度公公差差带带位位置置 g g45.045.00.750.753.13.13.13.19.49.49.49.4S S1 14 44 412121212精精密密1.51.56.36.36.36.319191919中中等等( (5g5