OST 1 33220-89 High hexagonal castellated nutsNuts OST 1 33220-89 – this product is a hexagonal rod with slots or a “crown” and with an internal hole and thread, suitable for fastening metal structures. The shape of the bottom of the slot can be flat, rounded or chamfered.
Description of the design of the product and its features
The design of the nut consists of a hexagonal rod with slots or a “crown” and an internal threaded hole.
Material of manufacture : steel grade 10Х11Н23Т3МР.
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 33220-89.pdf
An example of the name and designation of a high castellated hexagon nut with thread MR6 – 4Н5Н, made of steel 10X11H23T3MP, with Chem.Pas coating:
Designation example: Nut 6-2-Chem.Pas-OST 1 33220- 89
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.
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