公制(米制)螺纹极限尺寸(8)

内螺纹 外螺纹 极限尺寸

毛坯极限尺寸参考大径尺寸（非挤压加工）；螺纹山角度：60°公称直径 d

螺距 P

dmax

682

145

34623

150

4683

155

463

160

4683

165

463

170

4683

175

463

180

4683

185

4139.92139.9144.962144.952144.94144.92149.962149.952149.94149.92149.9154.952154.94154.92159.952159.94159.92159.9164.952164.94164.92169.952169.94169.92169.9174.952174.94174.92179.952179.94179.92179.9184.952184.94大径dmin139.32139.19144.682144.577144.465144.32149.682149.577149.465149.32149.19154.577154.465154.32159.577159.465159.32159.19164.577164.465164.32169.577169.465169.32169.19174.577174.465174.32179.577179.465179.32179.19184.577184.465中径d2min135.723134.369143.473142.779142.092140.723148.473147.779147.092145.723144.369152.779152.092150.723157.779157.092155.723154.369162.779162.092160.723167.779167.092165.723164.369172.779172.092170.723177.779177.092175.723174.369182.753182.068单位：mm小径d3max132.599130.085142.508141.271140.033137.559147.508146.271145.033142.559140.085151.271150.033147.559156.271155.033152.559150.085161.271160.033157.559166.271165.033162.559160.085171.271170.033167.559176.271175.033172.559170.085181.271180.033涂色部螺距为非常用规格；螺纹山角度：60°。大 径Dmin140140145145145145150150150150150155155155160160160160165165165170170170170175175175180180180180185185中径D2min136.103134.804143.701143.051142.402141.103148.701148.051147.402146.103144.804153.051152.402151.103158.051157.402156.103154.804163.051162.402161.103168.051167.402166.103164.804173.051172.402171.103178.051177.402176.103174.804183.051182.402小径D1min133.505131.34142.835141.752140.67138.505147.835146.752145.67143.505141.34151.752150.67148.505156.752155.67153.505151.34161.752160.67158.505166.752165.67163.505161.34171.752170.67168.505176.752175.67173.505171.34181.752180.67钻头径

公差0.810.3750.50.60.80.3750.50.60.810.50.60.80.50.60.810.50.60.80.50.60.810.50.60.80.50.60.810.50.6134132143142141139148147146144142152151149157156154152162161159167166164162172171169177176174172182181公差0.60.710.280.3750.4750.60.280.3750.4750.60.710.3750.4750.60.3750.4750.60.710.3750.4750.60.3750.4750.60.710.3750.4750.60.3750.4750.60.710.3750.475d2max136.023134.704143.663143.003142.342141.023148.663148.003147.342146.023144.704153.003152.342151.023158.003157.342156.023154.704163.003162.342161.023168.003167.342166.023164.704173.003172.342171.023178.003177.342176.023174.704183.003182.342公差0.30.3350.190.2240.250.30.190.2240.250.30.3350.2240.250.30.2240.250.30.3350.2240.250.30.2240.250.30.3350.2240.250.30.2240.250.30.3350.250.274D2max136.503135.254143.951143.351142.737141.503148.951148.351147.737146.503145.254153.351152.737151.503158.351157.737156.503155.254163.351162.737161.503168.351167.737166.503165.254173.351172.737171.503178.351177.737176.503175.254183.386182.777公差0.40.450.250.30.3350.40.250.30.3350.40.450.30.3350.40.30.3350.40.450.30.3350.40.30.3350.40.450.30.3350.40.30.3350.40.450.3350.375D1max134.305132.34143.21142.252141.27139.305148.21147.252146.27144.305142.34152.252151.27149.305157.252156.27154.305152.34162.252161.27159.305167.252166.27164.305162.34172.252171.27169.305177.252176.27174.305172.34182.252181.27