螺螺 纹纹材料厚材料厚 度度 t t翻边内孔翻边内孔 D D1 1翻边外孔翻边外孔 d d2 2凸缘高度凸缘高度 h h预冲孔直预冲孔直 径径 D D0 0凸缘圆角半凸缘圆角半 径径 R R0.83.381.61.90.6 3.251.62.2 3.381.81.91 3.5220.53.381.9221.23.52.161.50.6M31.52.553.52.41.70.75 14.4622.30.5 4.351.922.7 4.52.162.31.2 4.652.41.50.64.462.42.51.54.652.71.80.75M423.354.562.22.41 1.25.62.430.6 5.462.42.5 5.62.731.5 5.7532.50.755.533.22.425.753.62.71M52.54.255.7543.11.25 1.57.033.60.75 6.73.24.2 7.03.63.62 7.342.517.042.82.57.34.531.25M635.17.04.83.41.5表 9 带螺纹孔的内孔翻边尺寸参数