普通螺纹 基本牙型 GBT 192-2003.pdf

GB/T192-2003普通螺纹基本牙型1范围本标准规定了普通螺纹（一般用途米制螺纹）的基本牙型。本标准适用于一般用途的机械紧固螺纹联接，其螺纹本身不具有密封功能。2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GB/T14791螺纹术语(neq IS05408:1983)3术语和定义GB/T14791所规定的术语和定义适用于本标准。4基本牙型基本牙型应符合图1的规定。图中的粗实线代表基本牙型。5牙型尺寸普通螺纹的基本牙型尺寸按下列公式计算，具体尺寸见表1。H=5p=0.866025404P:号H-0.5126587p,gH=0.324750526P:H=0.216506351P,3H=0.108253175P.GB/T192-2003表1基本牙型尺寸单位为毫米螺距PH号H是HH合H0.20.1732050.1082530.0649520.0433010.0216510.250.2165060.1353160.0811900.0541270.0270630.30.2598080.1623800.0974280.0649520.0324760.350.3031090.1894430.1136660.0757770.0378890.40.3464100.2165060.1299040.0866030.0433010.450.3897110.2435700.1461420.0974280.0487140.50.4330130.2706330.1623800.1082530.0541270.60.5196150.3247600.1948560.1299040.0649520.70.6062180.3788860.2273320.1515540.0757770.750.6495190.4059490.2435700.1623800.0811900.80.6928200.4330130.2598080.1732050.08660310.8660250.5412660.3247600.2165060.1082531.251.0825320.6765820.4059490.2706330.1353161.51.2990380.8118990.4871390.3247600.1623801.751.5155440.9472150.5683290.3788860.18944321.7320511.0825320.6495190.4330130.2165062.52.1650631.3531650.8118990.5412660.27063332.5980761.6237980.9742790.6495190.3247603.53.0310891.8944311.1366580.7577720.37888643.4641022.1650631.2990380.8660250.4330134.53.8971142.4356961.4614180.9742790.4871394.3301272.7063291.6237981.0825320.5412665.54.7631402.9769621.7861771.1907850.5953925.1961523.2475951.9485571.2990380.64951986.9282034.330122.5980761.7320510.866025