EN14399-3 High-strength Structural Hex Nut Supplier In China
Ningbo Teng Qi Fasteners Co., Ltd. is a reliable supplier of EN14399-3 High-strength Structural Hex Nuts, specializing in providing high-quality fastening solutions for steel structure applications. Manufactured from high-strength carbon steel and alloy steel materials, our EN14399-3 nuts are designed to work together with corresponding high-strength structural bolts and washers to achieve secure and durable preloaded connections. These nuts are widely used in steel buildings, bridges, industrial facilities, and other heavy-duty structures where excellent mechanical strength, accurate dimension
Our EN14399-3 Structural Hex Nuts are available in different sizes and property classes to meet various steel structure requirements. The nuts undergo strict quality control, including material inspection, heat treatment verification, dimensional checks, and mechanical performance testing, to ensure consistent strength and reliability. Surface treatments such as hot-dip galvanizing and other protective coatings can be provided according to project requirements, making them suitable for bridges, steel buildings, industrial plants, and other heavy-duty structural applications where safety and long service life are critical.
Specification:
EN14399-3 High-strength Structural Hex Nuts are specially designed for use with high-strength structural bolting assemblies in steel construction applications. Manufactured according to the EN14399-3 standard, these nuts are produced from high-quality carbon steel or alloy steel and are engineered to provide reliable mechanical performance under high preload conditions. They feature precise thread dimensions, controlled hardness, and excellent load-bearing capability to ensure proper interaction with structural bolts and washers in preloaded connections.
| Product name | EN14399-3 High-strength Structural Hex Nut |
|---|---|
| Thread Diameter: | ST2.2-ST6.3 |
| Material: | M12-M36 |
| Surface Treatment | Black Oxidation/Hot Dip Galvanized |
| Packaging: | Boxes/cartons into wooden pallets |
Dimension Chart of EN14399-3 High-strength Structural Hex Nut:
The dimension chart of EN14399-3 High-strength Structural Hex Nuts provides detailed specifications for key parameters, including thread size, width across flats, nut height, thread pitch, and other critical dimensions. These dimensions are precisely defined according to the EN14399-3 standard to ensure proper compatibility with high-strength structural bolts and reliable performance in preloaded bolted connections. Accurate dimensional control helps achieve consistent assembly, proper tightening force, and enhanced structural safety in demanding construction applications.
| Mon | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M36 |
| P | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 |
| e min | 23.91 | 26.17 | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 66.44 |
| k max | 10.8 | 12.8 | 14.8 | 15.8 | 18 | 19.4 | 21.5 | 23.8 | 25.6 | 31 |
| k min | 10.37 | 12.1 | 14.1 | 15.1 | 16.9 | 18.1 | 20.2 | 22.5 | 24.3 | 29.4 |
| s max | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 60 |
| s min | 21.16 | 23.16 | 26.16 | 29.16 | 31 | 35 | 40 | 45 | 49 | 58.8 |
| dw min | 20.1 | 21.86 | 24.9 | 27.7 | 29.5 | 33.3 | 38 | 42.8 | 46.6 | 55.9 |
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Application of EN14399-3 High-strength Structural Hex Nut:
EN14399-3 High-strength Structural Hex Nuts play an important role in modern steel structure construction by providing stable and secure connections between structural components. Compared with ordinary hex nuts, these nuts are manufactured for high-strength bolting systems and are designed to withstand greater loads, ensuring the safety and durability of large steel assemblies. Their use helps improve construction reliability and reduce maintenance requirements throughout the service life of the structure.
| Application | Details |
|---|---|
| Steel Construction Industry | Widely used in steel buildings, commercial structures, warehouses, industrial workshops, and high-rise steel frameworks. EN14399-3 nuts help create strong bolted joints capable of supporting heavy loads and resisting structural movement. |
| Bridge Engineering Industry | Applied in highway bridges, railway bridges, and other infrastructure projects where long-term strength, fatigue resistance, and connection reliability are critical. |
| Industrial Plant Construction | Used in steel frames of factories, power plants, chemical plants, and other industrial facilities requiring high-strength connections to withstand heavy equipment loads and operational vibration. |
| Energy Infrastructure Industry | Suitable for wind power towers, power transmission structures, substations, and other energy projects where structural safety and environmental durability are important. |
| Heavy Machinery and Equipment Industry | Used for assembling large equipment platforms, steel supports, and mechanical structures that require strong and stable fastening performance. |
| Shipbuilding and Offshore Engineering Industry | Applied in offshore platforms, marine steel structures, and related projects where high-strength fastening is needed in demanding environments. |