3°/30°米制锯齿形螺纹的基本尺寸
公称直径 螺距P 中径
D2=d2
小径
D1 d3
55 9 48.25 41.5 39.380
55 3 52.75 50.5 49.793
60 14 49.5 39 35.703
60 9 53.25 46.5 44.380
60 3 57.75 55.5 54.793
65 16 53 41 37.231
65 10 57.5 50 47.645
65 4 62 59 58.058
70 16 58 46 42.231
70 10 62.5 55 52.645
70 4 67 64 63.058
75 16 63 51 47.231
75 10 67.5 60 57.645
75 4 72 69 68.058
80 16 68 56 52.231
80 10 72.5 65 62.645
80 4 77 74 73.058
85 18 71.5 58 53.760
85 12 76 67 64.174
85 4 82 79 78.058