Grade 8 Zinc Plated Carbon Steel Hex Nut
Grade 8 zinc plated carbon steel hex nut is a high-strength fastening component designed for secure threaded connections in structural, mechanical, and industrial applications. The grade 8 zinc plated carbon steel hex nut is manufactured from premium carbon steel and finished with a durable zinc coating to provide excellent mechanical strength, reliable corrosion resistance, and long service life.
The grade 8 zinc plated carbon steel hex nut is widely used in construction, heavy machinery, automotive manufacturing, steel structures, renewable energy equipment, agricultural machinery, and OEM production where high-strength bolted joints are required.
Product Overview
The grade 8 zinc plated carbon steel hex nut is engineered to provide reliable preload and secure fastening when paired with Grade 8.8 hex bolts and other compatible high-strength fasteners. Its standard hexagonal shape allows quick installation using common hand tools or automated assembly equipment.
The zinc-plated surface offers effective protection against oxidation and rust in indoor and moderately corrosive outdoor environments. This grade 8 zinc plated carbon steel hex nut is suitable for both new equipment manufacturing and maintenance applications.
As one of the most widely used industrial fasteners, it provides excellent load-bearing capacity, dimensional accuracy, and consistent fastening performance.
Product Specifications
| Item | Description |
|---|---|
| Standard | DIN934 / ISO 4032 (Optional) |
| Product Name | Grade 8 Zinc Plated Carbon Steel Hex Nut |
| Material | Carbon Steel |
| Thread Type | Metric Internal Thread |
| Nut Type | Hex Nut |
| Drive Type | External Hex |
| Diameter Range | M4–M64 |
| Surface Finish | Blue White Zinc Plated / Yellow Zinc Plated |
| Strength Grade | Grade 8 |
| Thread Direction | Right Hand |
| Corrosion Resistance | Moderate to High |
| Packaging | Carton, Bag, Pallet, OEM Packaging |
| Customization | Size, coating, marking, packaging, thread specification |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | Compatible with Grade 8.8 bolt assemblies |
| Proof Load | According to ISO 898-2 Grade 8 |
| Hardness | HV 188–302 |
| Density | 7.85 g/cm³ |
| Corrosion Resistance | Enhanced by zinc plating |
| Operating Temperature | -50°C to 300°C |
| Thread Tolerance | 6H |
| Manufacturing Standard | DIN934 / ISO 4032 / ISO 898-2 |
Materials and Manufacturing Process
The grade 8 zinc plated carbon steel hex nut is manufactured using advanced production technology to ensure high strength and consistent quality.
- Premium carbon steel raw material selection
- Cold forging for standard nut production
- Hot forging for large-size hex nuts when required
- Precision CNC machining for special specifications
- Internal thread tapping with strict tolerance control
- Heat treatment to achieve Grade 8 mechanical properties
- Zinc electroplating for enhanced corrosion resistance
- Passivation treatment to improve coating durability
- Cleaning and degreasing
- Comprehensive dimensional, thread, hardness, and coating inspections
- Export-grade packaging for safe transportation
Each grade 8 zinc plated carbon steel hex nut is manufactured under strict quality management to ensure stable industrial performance.
Applications of the Product
Grade 8 zinc plated carbon steel hex nuts are widely used in:
- Construction and steel structures
- Heavy machinery
- Automotive manufacturing
- Renewable energy equipment
- Agricultural machinery
- Petrochemical equipment
- Industrial equipment
- Manufacturing systems
- Material handling equipment
- OEM machinery production
Their high mechanical strength makes them suitable for demanding structural fastening applications.
Why Choose This Product
- Manufactured from premium carbon steel
- Grade 8 high-strength mechanical performance
- Zinc plating improves corrosion resistance
- Excellent dimensional accuracy
- Stable preload and clamping force
- Compatible with Grade 8.8 bolts
- Long service life
- Suitable for automated assembly
- OEM and ODM customization available
- Cost-effective industrial fastening solution
The grade 8 zinc plated carbon steel hex nut provides dependable fastening performance for industrial and structural applications.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
Our strengths include:
- Advanced cold forging and heat treatment facilities
- Large production capacity and stable inventory
- Custom manufacturing according to drawings or specifications
- Professional engineering and technical support
- Strict ISO quality management system
- Rich global export experience
- Fast delivery and flexible OEM/ODM services
- Comprehensive fastening solution consultation
Flybear supplies reliable fastening products for industrial customers worldwide.
Quality Inspection and Control
Every production batch undergoes strict inspection, including:
- Chemical composition analysis
- Tensile and proof load testing
- Hardness testing
- Salt spray corrosion testing
- Thread gauge inspection
- Dimensional inspection
- Surface coating inspection
- Packaging inspection
All products are manufactured in accordance with ISO quality management standards to ensure stable quality and reliable performance.
Selection Guide
When selecting a grade 8 zinc plated carbon steel hex nut, consider:
- Required bolt strength grade
- Thread diameter and pitch
- Load requirements
- Indoor or outdoor operating environment
- Corrosion level
- Required coating thickness
- Industry standards and engineering specifications
Selecting the proper nut improves fastening reliability and equipment safety.
FAQ
1. What is a Grade 8 hex nut?
A Grade 8 hex nut is a high-strength nut designed to match Grade 8.8 bolts for structural and mechanical fastening.
2. Why choose zinc plating?
Zinc plating improves corrosion resistance while maintaining excellent cost performance.
3. What standard does this hex nut comply with?
It can be manufactured according to DIN934, ISO 4032, or customer specifications.
4. Can it be used outdoors?
Yes. Zinc plating provides good protection for general outdoor environments. For highly corrosive environments, Dacromet or hot-dip galvanized coatings may be recommended.
5. Can Flybear provide customized products?
Yes. We offer OEM and ODM services including custom sizes, coatings, markings, and packaging.
The grade 8 zinc plated carbon steel hex nut offers high strength, reliable corrosion resistance, and consistent fastening performance for industrial applications.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
For quotations, customization, and technical support, please Contact Us.
