本文件规定了技术产品文件中花键和锯齿表示的规则和图形符号。 规定了两种表示方法: a） 完整的代表性； b） 简化表示法。 本文件中规定的规则和图形符号适用于零件（轴和轮毂）的详图和接头的装配图。 注:为统一起见，本文件中的所有图形均在第一角度正交投影中绘制。第三角度正交投影同样可以在不影响已确立原则的情况下使用。

This document specifies the rules and graphical symbols for the representations of splines and serrations in technical product documentation. Two methods of representation are specified: a) complete representation; b) simplified representation. The rules and graphical symbols specified in this document are applicable to detail drawings of parts (shafts and hubs) and to assembly drawings of joints. NOTE For uniformity, all the figures in this document have been drawn in the first-angle orthographic projection. A third-angle orthographic projection could equally have been used without prejudice to principles established.