DIN V 4001-204-1990 计算机辅助设计标准件文档.第204部分:几何和参数规范.用工具从内部驱动的有普通安装面紧公差的平头螺栓
CAD standard parts file; specifications of geometry and parameters; bolts with head, close tolerance, with plain sitting surface, with drive internal by tool
This standard is applicable for CAD relevant product standards resp. dimensions standards on the basis of a structural logic and gives indications for the necessary geometry parameters for a CAD application, specifications referring to the data set structure and format and indications for CAD representation possibilities.#,,#