包括阳端尺寸和阴端尺寸。表中给出的螺距p/ps定义了花键尺寸。第一个数字是径节；第二个数字是短管节距；它以英寸的小数部分表示节圆上方和下方啮合的基本径向长度。该模块表示每齿中径的单位数，单位为毫米。

Covers both the male end dimensions, and the female end dimensions. The pitch p/ps as given in the tables defines the spline dimensions. The first number is the diametral pitch; the second number is the stub pitch; it denotes, as the fractional part of an inch, the basic radial length of engagement, both above and below the pitch circle. The module denotes the number of units of pitch diameter per tooth, in millimetres.