NC螺纹攻牙参数

规格标准直径最大最小规格

标准直径最大NO.1-64 1.55 1.58 1.42NO.0-80 1.25 1.3NO.2-56 1.8 1.87 1.69NO.1-72 1.55 1.61NO.3-48 2.1 2.14 1.94NO.2-64 1.85 1.91NO.4-40 2.3 2.38 2.15NO.3-56 2.1 2.19NO.5-40 2.6 2.7 2.48NO.4-48 2.4 2.458NO.6-32 2.8 2.89 2.64NO.5-44 2.7 2.74NO.8-32 3.4 3.53 3.3NO.6-40 2.9 3.02NO.10-24 3.9 3.96 3.68NO.8-36

3.5 3.61NO.12-24

4.5 4.59 4.34NO.10-32 4.1 4.161/4-20

5.1 5.25 4.98NO.12-28 4.6 4.725/16-18

6.6 6.73 6.41/4-28 5.5 5.583/8-1688.15

7.795/16-24 6.97.037/16-149.49.559.143/8-24

8.58.631/2-1310.911.0210.597/16-20

9.910.039/16-1212.212.4411.991/2-2011.511.65/8-1113.613.8713.399/16-1812.913.083/4-1016.616.8416.315/8-1814.514.687/8-919.619.7619.183/4-1617.517.681-822.322.621.977/8-1420.520.671-1/8-72525.3524.631-1223.323.571-1/4-728.228.5227.811-1/8-1226.526.741-3/8-630.831.1130.351-1/4-12

29.6

29.92

1-1/2-63434.2933.521-3/4-539.539.8338.962-4-1/2

45.2

45.59

44.68

美制细牙（UNF）螺纹

美制螺纹攻牙钻孔对照

美制粗牙（UNC）螺纹

UNF）

孔对照表

mill

2013/5/17