Hex Nut
Six-sided internally threaded fastener manufactured to ISO 4032 / DIN 934, designed to mate with bolts, screws, and studs. Available in carbon steel, stainless steel, and brass across Class 6 to 12 property grades.
Specification
#
Standard
ISO 4032 (Style 1) / DIN 934
Material
Carbon Steel, Alloy Steel, Stainless Steel A2 (304), Stainless Steel A4 (316), Brass, Aluminum
Surface Finish
Zinc Plated, Hot-Dip Galvanized (HDG), Plain/Black Oxide, Dacromet, Zinc-Nickel, Phosphate, Chrome
Thread Type
Metric Coarse (standard), UNC (inch series per ASME B18.2.2)
Drive Type
Hexagon (wrench/spanner/socket)
Head Type
Hexagon, standard pattern (height approx. 0.8 x nominal diameter)
Grade
Class 6, 8, 10, 12 (steel per ISO 898-2); A2-70, A4-70, A4-80 (stainless per ISO 3506-2)
Thread
Coarse (standard)
Coating
Zinc plated
Stock
In stock
Dimension
#
Size
Thread Dia (min-max mm)
Pitch
Height (mm)
M5
4.83-5.00
0.8
4.7
M6
5.79-6.00
1.0
5.2
M8
7.76-8.00
1.25
6.8
M10
9.74-10.00
1.5
8.4
M12
11.71-12.00
1.75
10.8
- All dimensions in mm, tolerance +/- 0.01 mm. Additional dimensions available on request.
Benefits
#
Hex nuts solve the fundamental engineering problem of creating removable, high-strength threaded connections. The hexagonal profile distributes torque evenly across six flats, allowing consistent clamping force with standard wrench and socket tools. Full-height design ensures thread engagement sufficient to develop the complete tensile capacity of the mating bolt, preventing thread stripping under load. The standardized dimensions across ISO 4032 and DIN 934 guarantee interchangeability between manufacturers, reducing sourcing complexity. For engineers specifying fasteners across diverse environments, hex nuts are available in materials ranging from economical zinc-plated carbon steel to marine-grade A4 stainless steel, with property classes from 6 through 12 to match bolt grades. Their simplicity, global availability, and compatibility with automated assembly systems make them the default choice for general-purpose and structural bolted joints.
Common Applications
#
Hex nuts are used across virtually every engineering discipline where removable bolted connections are required.
- Structural steel connections and construction frameworks
- Automotive chassis, engine, and body assemblies
- General machinery assembly and manufacturing
- Electrical enclosures and control panels
- HVAC ductwork and mechanical services
- Pipeline flange connections
- Solar panel mounting systems
- Marine fittings and deck hardware
- Agricultural and construction equipment
- Rail and transportation infrastructure
Read Me
| Standard | ISO 4032 (Style 1) / DIN 934 |
| Material | Carbon Steel, Alloy Steel, Stainless Steel A2 (304), Stainless Steel A4 (316), Brass, Aluminum |
| Surface Finish | Zinc Plated, Hot-Dip Galvanized (HDG), Plain/Black Oxide, Dacromet, Zinc-Nickel, Phosphate, Chrome |
| Thread Type | Metric Coarse (standard), UNC (inch series per ASME B18.2.2) |
| Drive Type | Hexagon (wrench/spanner/socket) |
| Head Type | Hexagon, standard pattern (height approx. 0.8 x nominal diameter) |
| Grade | Class 6, 8, 10, 12 (steel per ISO 898-2); A2-70, A4-70, A4-80 (stainless per ISO 3506-2) |
| Thread | Coarse (standard) |
| Coating | Zinc plated |
| Stock | In stock |
| Size | Thread Dia (min-max mm) | Pitch | Height (mm) |
|---|---|---|---|
| M5 | 4.83-5.00 | 0.8 | 4.7 |
| M6 | 5.79-6.00 | 1.0 | 5.2 |
| M8 | 7.76-8.00 | 1.25 | 6.8 |
| M10 | 9.74-10.00 | 1.5 | 8.4 |
| M12 | 11.71-12.00 | 1.75 | 10.8 |
