GOST 10338-80 Screws with a hexagonal head, captive accuracy class BScrews GOST 10388-80 – this product has a hexagonal head and a design that allows them not to fall out out of the hole. 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 B.
Material of manufacture must have strength class 5.8; 8.8, made of 35X steel and brass.
Screws are coated with zinc, chromium, nickel, cadmium, etc. in our own galvanic workshop. A multilayer coating is also available, such as copper-nickel (M.N.) or copper-nickel-chromium (M.N.X.6).
Screw GOST 10338-80.pdf
An example of a symbol for a screw with a thread diameter of 8 mm, with a tolerance of 6g, a length of 25 mm, strength class 5.8, uncoated:
An example of a symbol: Screw M8 -6gх25.58 GOST 10338-80
The same, strength class 8.8, from steel grade 35X, with a zinc coating 9 microns thick, chromated:
Designation example: Screw М8-6gх25.88.35X.019 GOST 10338-80
Product application areas
These screws 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.
ANALOGUES p >
DIN 7964 .pdf