OST 1 33221-89 HEXAGONAL NUTS REINFORCEDNuts OST 1 33221-89 – 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. The use of washers of various configurations (grovers, flat, etc.) will help to make the connection more reliable.
Description of the product design and its features
The nut design consists of a slotted hex bar or the type of “crown” and an internal hole with a thread.
Material of manufacture: steel grade A12.
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 33221-89.pdf
An example of the name and designation of a hexagon nut reinforced with a crown with a thread MR6 – 5Н6Н, made of steel A12 with a Ts.хр coating:
An example of designation: Nut 6-1-Ц-ОСТ 1 33221-89 p>
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.