GOST 5915 Hex Nut
GOST 5915 Hex Nuts are standard metric hexagon nuts designed for general bolted connections where a conventional six-sided nut is required. Their hexagonal profile provides six accessible faces for wrench engagement, while the internal metric thread provides a straightforward connection with matching bolts or studs.
For selecting the right nut, the thread size is only one part of the specification. The nut height, width across flats, thread tolerance, material, and property class should all be considered together with the mating fastener. This is particularly important when replacing an existing nut or matching a GOST-based fastening assembly. GOST 5915-70 covers Grade B hexagon nuts in metric sizes from M1.6 to M48. We can supply these nuts in carbon steel and stainless steel, with different strength classes, surface finishes, and customized requirements available according to the application or customer drawings.
Specification:
GOST 5915-70 defines the construction and dimensions of Grade B hexagon nuts in metric sizes from M1.6 to M48. The nuts can be supplied in carbon steel or corrosion-resistant stainless steel according to the requirements of the application.
For carbon steel nuts, mechanical properties can be specified according to GOST 1759.5-87 and the applicable property class. For stainless steel versions, A2 and A4 grades can be supplied with mechanical properties according to ISO 3506-2. The metric thread is based on GOST 24705, with the applicable internal thread tolerance specified according to the product designation or drawing.
| Item | Specification |
|---|---|
| Product Type | Hexagon Nut |
| Standard | Gost 5915-70 |
| Size Range | M1.6-M48 |
| Product Grade | B |
| Thread | Metric |
| Thread Tolerance | 6H |
| Dimensional Tolerance | GOST1759.1 |
| Material | Carbon Steel,Alloy Steel,Stainless Steel |
| Steel Property Class | 5,8,10,12 |
| Steel Mechanical Property | GOST1759.5 |
| Stainless Steel Class | A2-70/80, A4-70/50 |
| Stainless Steel Mechanical Standard | ISO3506-2 |
| Surface Treatment | Black Oxidation,Zinc Plated,HDG |
| Inspection | Dimension, Thread,Mechanical Property,Coating |
Dimension Chart of GOST 5915 Russia Standard Hex Nut:
| Thread Diameter | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 |
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1|1.25 | 1|1.25|1.5 | 1.25|1.5|1.75 | 1.5|2 |
| e min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 |
| k max | 1.3 | 1.6 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 | 8 | 10 | 11 |
| k min | 1.05 | 1.35 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | 7.64 | 9.64 | 10.3 |
| s max | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 |
| s min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 |
| Thread Diameter | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 |
| P | 1.5|2 | 1.5|2|2.5 | 1.5|2|2.5 | 1.5|2|2.5 | 2|3 | 2|3 | 2|3.5 | 2|3.5 | 3|4 | 3|4 | 3|4.5 | 3|4.5 | 3|5 |
| e min | 26.75 | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 |
| k max | 13 | 15 | 16 | 18 | 19 | 22 | 24 | 26 | 29 | 31 | 34 | 36 | 38 |
| k min | 12.3 | 14.3 | 14.9 | 16.9 | 17.7 | 20.7 | 22.7 | 24.7 | 27.4 | 29.4 | 32.4 | 34.4 | 36.4 |
| s max | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 |
| s min | 23.67 | 26.16 | 29.16 | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 |
- RELATED NUT LISTS:
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- ASME/ANSI B 18.2.2 Hex Slotted Nuts/Castle Nuts
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Application of GOST 5915 Hex Nut:
General Mechanical Assemblies
GOST 5915 hex nuts are used in general mechanical assemblies where metric bolts or studs are used to create secure, detachable joints. They are suitable for fastening brackets, plates, supports, housings, and other mechanical components.
Machinery and Equipment
These nuts are suitable for machinery and equipment assemblies, including frames, guards, mounting components, and structural connections. Carbon steel and stainless steel options allow the fastener to be selected according to the load and service environment.
Fabricated Metal Structures
GOST 5915 hex nuts can also be used with bolts and studs in fabricated metal structures, such as frames, supports, brackets, and welded assemblies. Standardized dimensions make them convenient for metric fastening systems based on GOST specifications.