NC 09-04-109-1988 Unified Elements System of Moulds, Dies, Stampers and Machining Devices. Devices Spheric ot Plain Flange Square Nut. Design Specifications
This standard establis es the design specifications for square nuts with flat or spherical flanges with thread diameters from 6 to 30mm for machining devices.
NC 09-04-109-1988 history
1988NC 09-04-109-1988 Unified Elements System of Moulds, Dies, Stampers and Machining Devices. Devices Spheric ot Plain Flange Square Nut. Design Specifications