OST 1 31238-85 Bolts with a reduced 90 ° angle countersunk head with a technological shank and a short threaded part for tight connectionsBolts OST 1 31238- 85 – this product has a special design of a threaded rod, a technological shank and a countersunk head of the bolt.
Description of the product design and its features < /p>
technological shank and thread.
Material of manufacture: from steel grade 30HGSA.
Bolts are coated with zinc, chromium, nickel, cadmium, etc. in our own electroplating workshop. A multilayer coating is also available, for example, copper-nickel (M.N.) or copper-nickel-chromium (M.N.X.6).
OST 1 31238-85.pdf
An example of the name and designation of a bolt with a reduced 90 ° countersunk head with a technological shank and a short threaded part for tight connections, with MB thread and 24 mm length, cadmium-plated:
Designation example: Bolt 6- 24-Kd-OST 1 31238-85
The same, galvanized:
Designation example: Bolt 6-24-Ts-OST 1 31238-85
These bolts are used in many industries. There is a high demand for a product in mechanical engineering and construction, where such bolts are used to securely connect with an interference fit of aluminum alloy bags.