普通螺纹 公差

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1、普通螺纹公差1普通螺纹公差：图形未注螺纹公差，默认为外螺纹公差：6g；内螺纹公差：6H2常用内外螺纹的基本偏差（单位为微米）螺距P/mm基本偏差内螺纹外螺纹GEIHEIEesFesGesHes0.50.60.7+20+21+22000-50-53-56-36-36-38-20-21-220000.750.81+22+24+26000-56-60-60-38-38-40-22-24-260001.251.51.75+28+32+34000-63-67-71-42-45-48-28-32-3400022.53+38+42+48000-71-80-85-52-58-63-38-42-480003

2、内螺纹小径公差（TD1）（单位为微米）螺距P/mm公差等级456780.50.60.790100112112125140140160180180200224---0.750.81118125150150160190190200236236250300-3153751.251.51.7517019021221223626526530033533537542542547553022.532362803153003554003754505004755606306007108004外螺纹大径公差（Td）（单位为微米）螺距P/mm公差等级4680.50.60.7678090106125140---0

3、.750.819095112140150180-2362801.251.51.7513215017021223626533537542522.531802122362803353754505306005内螺纹中径公差（TD2）（单位为微米）基体大径D/mm螺距P/mm公差等级＞≤45672.85.60.350.50.60.70.750.8566371757580718090959510090100112118118125-1251401501501605.611.20.7511.251.5859510011210611812514013215016018017019020022411.22

4、2.411.251.51.7522.510011211812513214012514015016017018016018019020021222420022423625026528022.44511.5233.544.510612514017018019020013216018021222423625017020022426528030031521225028033535537540045901.523455.51321501802002122241701902242502652802122362803153353552653003554004254506外螺纹中径公差（Td2）（单位为微

5、米）基体大径D/mm螺距P/mm公差等级＞≤45672.85.60.350.50.60.70.750.842485356566053606771717567758590909585951061121121185.611.20.7511.251.56371758580909510610011211813212514015017011.222.411.251.51.7522.5758590951001069510611211812513211813214015016017015017018019020021222.44511.5233.544.5809510612513214015010011

6、813216017018019012515017020021222423616019021225026528030045901.523455.561001121321501601701801251401701902002122241601802122362502652802002242653003153353557普通螺纹基本尺寸（单位为微米）公称直径D、d螺距P中径D2或d2小径D1或d130.52.6752.45940.73.5453.24250.84.4804.134615.3504.91781.2517.1887.3506.6476.917101.51.2519.0269.1889

7、.3508.3768.6478.917121.751.51.25110.86311.02611.18811.35010.10610.37610.64710.917公称直径D、d螺距P中径D2或d2小径D1或d11421.5112.70113.02613.35011.83512.37612.9171621.5114.70115.02615.35013.83514.37614.917182.521.5116.37616.70