ISO 4230:2016是对ISO 2568和ISO 4231的补充，并根据ISO 7-1规定了用于生产R系列锥管螺纹的手动和机械操作圆螺纹模具的尺寸。 除1/16模具外，这些模具的一般尺寸（直径、厚度和固定尺寸）符合ISO 2568的要求，以便在该文件中定义的模座的帮助下驱动手动模具。

ISO 4230:2016 is a supplement to ISO 2568 and ISO 4231 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of taper pipe threads, R series, in accordance with ISO 7？1. With the exception of the die 1/16, the general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.