GOST 7796-70 Bolts with a reduced hexagon head of accuracy class BBolts GOST 7796-70 – bolts with a reduced hexagon head of accuracy class B. When using you will also need nuts (hex, square, or weld). 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
cylindrical threaded rod. Products must be manufactured with accuracy class B.
Made of steel (normal or stainless), aluminum, PA 6.6 polyamide, brass, non-ferrous metal alloys with strength class 5.6; 5.8; 8.8; 10.9; 12.9. Or others as agreed with the customer.
Bolts are coated with zinc, chromium, nickel, cadmium, etc. in our own electroplating workshop. A multilayer coating is also available, such as copper-nickel (M.N.) or copper-nickel-chromium (M.N.X.6).
GOST 7796-70.pdf< p> Example of conventional designation of bolt version 1 with a thread diameter of 12 mm, length 60 mm, with a coarse thread pitch with a tolerance field of 6g, strength class 5.8, uncoated:
Example of designation: Bolt M12-6gx60.58 GOST 7796-70
The same, version 2, with a fine thread pitch with a tolerance of 6g, strength class 10.9, made of steel grade 40X, with a coating of 01 with a thickness of 6 microns ::
Designation example: Bolt 2M12x1,25-6gx60.109.40Х.016 GOST 7796-70
Product application areas
These bolts are used in many industries. High demand for a product in mechanical engineering and construction, where such bolts are used to securely fasten parts and metal structures.