还规定了键的材料，给出了轴直径和键截面之间应遵循的关系，对圆柱形轴端普遍适用。即使在特殊应用中，也建议遵循给定的值。有关普通锥形键和相应键槽的信息，请参考ISO/R 773。

Also specifies the material of the keys, gives the relation which should be observed between the diameter of shaft and the section of key, and is of general application for cylindrical shaft ends. It is recommended that the values given be adhered to even for special applications. For normal taper keys and corresponding keyways refer to ISO/R 773.