







Introducing our Rust-Resistant Galvanized Hexagon Nuts, meticulously engineered to withstand any weather condition:
Definition and Purpose
Definition: The Galvanized Hex Nut is a premium fastener that undergoes a specialized galvanization process, creating a protective zinc coating on the surface through either electroplating or hot-dip coating. This layer fortifies the nut, enhancing its durability against environmental elements.
• Application: These versatile nuts are indispensable in numerous sectors, including the construction of steel structures, automotive manufacturing, power infrastructure, machinery production, and home appliance industries.
Classification
Classified by Galvanizing Process: We offer both hot-dip and electroplated galvanized hex nuts. Hot-dip galvanized products excel in corrosion resistance, making them a popular choice, capturing 68% of the global market in 2020, compared to 32% for electroplated ones.
• Classified by Strength Grade: Our hex nuts come in a range of strength grades such as 4.8, 8.8, 10.9, and 12.9. The demand is shifting towards high-strength grades (8.8 or above), especially in the automotive sector, projected to rise to 75% by 2025.
Characteristic Features
Superior Anti-Corrosion Performance: The zinc coating acts as a robust barrier against air and moisture, effectively preventing rust and corrosion, thereby significantly extending the nut's lifespan.
• Elegant Appearance: With a smooth finish, our galvanized nuts not only offer functionality but also add a sleek, decorative touch to any assembly.
Reliable Mechanical Performance: The galvanized layer enhances the nut's resilience, ensuring it retains its mechanical integrity while providing additional environmental protection.
Production Process
Hot Dip Galvanizing Process: This involves immersing the nut in molten zinc, forming a zinc-iron alloy and pure zinc layers. This method is renowned for its high efficiency, uniform zinc distribution, strong adherence, and exceptional corrosion resistance.
Electrogalvanizing Process: Utilizing electrolysis, a thin, uniform zinc layer is deposited on the nut surface. This cost-effective method allows for precise control over the layer's thickness and consistency.
Inspection Standards
Appearance Inspection: Requires a flawless coating — complete, consistent, smooth, and defect-free. The nut's surface must remain free of any visible imperfections such as cracks or damage.
Dimensional Inspection: Ensures that all external dimensions, theoretical weights, and thread measurements conform to established standards and tolerance levels.
Performance Inspection: Includes rigorous testing of load-bearing and hardness metrics, guaranteeing compliance with applicable standards.
Market Trends
Product Upgrade: The transition to environmentally friendly, chromium-free passivation is on the rise, achieving a 40% penetration in the EU. Domestic producers are swiftly innovating to keep pace.
Customization Demand Growth: The demand for specialized, custom-specification galvanized hex nuts is increasing, with orders anticipated to reach 25%.
• Enhanced Anti-Loosening Features: The adoption of double nut combinations is growing, with usage climbing from 18% in 2022 to a projected 27% in 2024.
Purchase Precautions
• Choose Based on Environmental Use: In moist or severe conditions, prioritize selecting hot-dip galvanized or high-corrosion-resistant nuts for optimal performance.
• Select According to Load Requirements: Ensure the chosen nuts meet the required strength levels to efficiently handle tensile and shear forces during application.