粗牙螺纹基础尺寸表

公称直径（d)11.11.21.41.61.822.22.533.4.55671011121416182022242730333639424852566068*外螺纹外径最大

螺距（t）0.250.250.250.30.350.350.40.450.450.50.60.70.750.8111.251.251.51.51.75222.52.52.5333.53.44..5555.55.566中径（d2）0.840.941.041.211.371.571.741.912.212.683.113.5.014.485.356.357.198.199.0310.0310.8612.7014.7016.3818.3820.3822.0525.0527.7330.7333.4036.4039.0842.0844.78.7552.4356.4360.10.10外螺纹外径*（d）1、2级最小3级最小0.941.041.141.321.511.711.902.092.392.883.373.8.3.845.826.827.808.809.7610.7611.7413.7115.7117.6719.6721.6723.6326.6329.6032.6035.5838.5841..57.5051.5055.4559.4563.4067.400.941.041.141.321.511.711.902.092.392.883.373.8.3.785.756.757.708.709.6510.6511.6213.5915.5917.5219.5221.5223.4826.4829.4532.4535.4038.4041.34.37.3051.3055.2559.2563.2067.20内螺纹内径（d1）最小0.730.830.931.081.221.421.571.712.012.462.853.243.694.134.925.926.657.658.3.3810.1111.8413.8415.2917.2919.2920.7523.7526.2129.2131.6734.6737.1340.1342.5946.5950.05.0557.5161.51最大0.810.911.011.171.321.521.681.832.132.603.013.423.884.335.126.126.877.878.639.6310.3912.1414.1415.6317.6319.6321.1324.1326.6329.6332.1535.1537.6840.6843.1947.1950.70.7058.2162.21