GOST 17474-80 Half-countersunk head screws of accuracy classes A and BGOST screws 17474-80 – this product has a half-countersunk head. 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 should be manufactured with accuracy class A and B.
The diameter of the smooth part should be equal to the outer diameter of the thread or equal to the diameter of the rod for rolling metric threads in accordance with GOST 19256-73
By agreement between the consumer and the manufacturer is allowed to manufacture screws with lengths not specified in GOST 17474-80
Thread – in accordance with GOST 24705-81. Runaway and undercut thread – according to GOST 10549-80
Straight slots – according to GOST 24669-81, cruciform – according to GOST 10753-86.
Tolerances, methods of control of dimensions and deviations of the shape and location of surfaces – according to GOST 1759.1-82.
Surface defects and control methods – according to GOST 1759.2-82
It is 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.
Screws 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).
An example of designation GOST 17474-80: screw with a half-countersunk head , accuracy class A, version 1, thread diameter d = 8 mm, with coarse thread pitch, with tolerance field 6g, length l = 50 mm, normal thread length b = 22 mm, strength class 4.8, uncoated: p>
Screw A.M8-6gx50.48 GOST 17474-80
Example of designation GOST 17474-80: accuracy class B, version 2, with fine thread pitch, extended thread length b = 34 mm , with a zinc coating 6 microns thick, chromated:
Screw B2.M8x1-6gx50-34.48 GOST 17474-80
Product application areas
These screws 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.
ANALOGUES p >
GOST 17474 80 analogue – GOST R ISO 2010-2013 Half-countersunk head screws with slot. Accuracy class A
GOST 17474 80 analogue – GOST R ISO 7047- 2013 Half-countersunk head and Phillips head screws type H or type Z. Accuracy class A
GOST 17474 80 analogue of DIN 964 Screw with half-countersunk head and straight slot
GOST 17474 80 analogue of DIN 966 Screw with half-countersunk head and Phillips head p>