公制(米制)螺纹极限尺寸(9)
时间：2025-04-05
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
3
190
4683
195
463
200
468
189.952189.94189.92189.9194.952194.94194.92199.952199.94199.92199.9
大径dmin189.577189.465189.32189.19194.577194.465194.32199.577199.465199.32199.19
中径d2min187.753187.062185.708184.349192.753192.062190.708197.753197.062195.708194.349
单位：mm小径d3max186.271185.033182.559180.085191.271190.033187.559196.271195.033192.559190.085
涂色部螺距为非常用规格；螺纹山角度：60°。大 径Dmin190190190190195195195200200200200
中径D2min188.051187.402186.103184.804193.051192.402191.103198.051197.402196.103194.804
小径D1min186.752185.67183.505181.34191.752190.67188.505196.752195.67193.505191.34
钻头径
公差0.50.60.810.50.60.80.50.60.81
187186184182192191189197196194192
公差0.3750.4750.60.710.3750.4750.60.3750.4750.60.71
d2max188.003187.32186.023184.704193.003192.342191.023198.003197.342196.023194.704
公差0.250.2580.3150.3550.250.280.3150.250.280.3150.355
D2max188.386187.777186.528185.279193.386192.777191.528198.386197.777196.528195.279
公差0.3350.3750.4250.4750.3350.3750.4250.3350.3750.4250.475
D1max187.252186.27184.305182.34192.252191.27189.305197.252196.27194.305192.34
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