OST 1 31235-85 Bolts with a flat-rounded head with a technological shank and a short threaded part for tight fittingBolts OST 1 31235-85 – This product, the bolt head does not have sharp edges and can be placed on the front side, namely, it is a hemisphere flattened to flat, and a threaded rod and a technological shank, they can connect several parts (packages) of aluminum alloys at once, with an interference fit.
Description of the design of the product and its features
The design of the bolt consists of a flat-rounded head and a cylindrical rod with a short thread and a technological shank.
Material of manufacture: made of steel grade 30HGSA.
Bolts are coated with zinc, chromium, nickel, cadmium, etc. 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 31235-85.pdf
An example of the name and designation of a pan-head bolt with a technological shank and a short threaded part for tight connections, with an M6 thread and a length of 24 mm, cadmium-plated:
An example of designation: Bolt 6-24- Kd-OST 1 31235-85
the same, zinc-plated:
Designation example: Bolt 6-24-Kd-OST 1 31235-85
These bolts are used in many industries. There is a high demand for a product in mechanical engineering, where such bolts are used to securely connect with an interference fit of aluminum alloy bags.