| Customization: | Available |
|---|---|
| Material: | Alloy Steel |
| Type: | Hexagon Head |
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We are specializing in Studs, Bolts, Nuts, Washers, Stamping metal parts and more. With product quality and good service, the company has gained credit from customers.
Description:
This heavy-duty nut is designed for secure, high-load fastening in industrial and construction applications. Manufactured from high-grade alloy or carbon steel (grades 8.8, 10.9, or 12.9 available), it delivers superior tensile strength, torque resistance, and long-lasting performance in demanding environments. Ideal for structural steel connections, heavy machinery assembly, and high-stress bolted joints.
| Parameter | Details |
|---|---|
| Product Name | Premium Heavy Load Steel Nut |
| Description | A robust, precision-engineered nut designed for applications requiring exceptionally high strength, heavy-duty performance, and custom specifications. Ideal for critical assemblies under extreme loads, impact, and vibration. |
| Nut Type | Special Heavy Hex Nut / Lock Nut / Custom Shape Nut - manufactured per customer design or application need. |
| Standards | Non-standard - customized according to customer drawings, samples, or special requirements. |
| Shape | Typically hexagonal, square, round, or specially slotted/castellated - depends on the design for specific locking or fitment features. |
| Thread Type | Metric or Imperial (UNC/UNF); coarse or fine pitch; precision-machined for accurate fit and repeatable torque. |
| Material | Alloy Steel (e.g., medium carbon alloy, heat-treated for high tensile properties); Special Stainless Steel or other high-strength metals if corrosion resistance is required. |
| Hardness | Typically HRC 25-40 (varies with material grade and heat treatment). |
| Tensile Strength | Very high tensile & yield strength, typically 120-150 ksi (827-1034 MPa) or higher - to withstand extreme stress without thread failure. |
| Surface Finish | Black oxide, phosphate coating, zinc plating, hot-dip galvanizing, or PTFE coating - selected to match application environment (corrosion, temperature, wear). |
| Special Features | - Anti-loosening design: slots, castellations, self-locking features, or lock inserts. - Reinforced threads for repeated assembly/disassembly. - Can be paired with matching lock washers or cotter pins. |
| Applications | Heavy machinery, structural steel connections, breaker hammers, oil & gas equipment, mining and quarrying, heavy transport, pressure vessels, energy & power plants. |
| Available Sizes | Fully customized - from small precision nuts to large diameter nuts (e.g., M12 to M80 or ½" to 3"+). |
| Certifications | Dimensional report, hardness test, mechanical property test, 3.1 MTC as per EN 10204 - provided on request. |
| Packaging | Individually packed, bulk packed in cartons, or wooden cases for large heavy nuts - as per customer requirement. |
| Customization | Full customization possible for size, material, coating, thread type, and special locking features based on customer drawing or prototype sample. |
Made from high-strength alloy steel - proven durability in extreme conditions.
Custom design ensures perfect fit for special applications.
Advanced surface treatments for corrosion and wear resistance.
Suitable for dynamic loads, heavy impact, and vibration.
Steel structure assembly
Bridge construction
Mining machinery fastening
Large equipment and vehicles
Wind tower and infrastructure bolts
Jiaxing Hongsteel Trading Co., Ltd. And Ningbo Hongsteel Machinery Co., Ltd. Combine the strength of advanced manufacturing and international trade under one trusted name "Hongsteel". With over 16 years of industry experience, we have built a solid reputation for delivering precision-engineered components and reliable service worldwide.
As both a manufacturer and trading company, we specialize in non-standard manufactured parts, fasteners, construction machinery components, electric tool parts, automotive parts, and more. We also offer customized solutions tailored to meet each client's unique requirements.
Backed by skilled technicians and modern production equipment, we ensure high efficiency, strict quality control, and consistent product performance at every stage. Our facilities are certified with ISO9001, ISO 17025, SGS, and laboratory testing accreditations, ensuring full compliance with international quality standards.
At Hongsteel, we are committed to the principle of "quality first, service first, continuous improvement, and innovation to meet customer needs, " while striving to achieve our quality goal of "zero defects, zero complaints. " We warmly welcome your inquiries and look forward to building long-term, successful partnerships with clients around the globe.
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