ACME螺纹基本尺寸
ACME螺纹基本尺寸(in)公称尺寸牙数大径中径D2, d2小径D (内螺纹)D (夕卜螺纹)D1 (内螺纹)D1 (夕卜螺纹)1/4160.260.250.21880.18750.17755/161
ACME螺纹基本尺寸