OST 1 12931-77 Union nutsNuts OST 1 12931-77 – this product is a hexagonal body with an internal hole and thread, suitable for connection
Description of the product design and its features
The nut design consists of a hexagonal body and an internal threaded hole.
Material of manufacture: from steel grade 13X11N2V2MF -Sh.
Coating of nuts with zinc, chromium, nickel, cadmium, etc. is carried out in our own galvanic workshop. A multilayer coating is also available, for example, copper-nickel (M.N.) or copper-nickel-chromium (M.N.X.6).
OST 1 12931-77.pdf
An example of the name and designation of a cap nut to a 12 mm pipeline made of steel 13H11N2V2MF-Sh with El.fos coating:
An example of designation: Union nut 12 – OST 1 12931-77
The same, made of steel 13X11N2V2MF-Sh with MZ-6 coating:
Example of designation: Union nut 12-08-OST 1 12931-77
Designation of a union nut for a pipeline with a diameter of 6 mm with thread M12x1.5, additionally enter the thread pitch, for example:
Designation example: Union nut 6-08-1.5 – OST 1 12931-77
These nuts are used in many industries. Increased demand for products, in particular, is observed in the aircraft and machine-building industries, as well as in construction, energy and metalworking, where they are used for reliable fastening of parts and metal structures. (Component parts).