GOST 18125 BOLTS with Reduced hex head with thread diameter over 48 mm (accuracy class A and B) strong >Bolts GOST 18125 – applies to general-purpose bolts with a hexagonal reduced head and accuracy classes A and B with a thread diameter over 48 mm. Use will also require 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
threaded rod. Products must be manufactured with accuracy class A and 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 18125-72.pdf< p> An example of a symbol for a bolt of class B, completion 1, thread diameter 56 mm, with a coarse thread with a tolerance range of 6g, 300 mm long, made of material group 02, uncoated:
Example of designation: Bolt М56-6gх300.02 GOST 18125-72
The same, accuracy class A, version 2, thread diameter 56 mm, with a fine thread pitch with a tolerance field of 6g, lengths 300 mm, made of material from group 07, s coating 01 with a thickness of 9 microns:
Example of designation: Bolt A2M56x4-6gx300.07.019 GOST 18125-72
Product application areas
These bolts are used in many industries. Increased demand for products, in particular, is observed in the aircraft and mechanical engineering 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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