Grade 8 Zinc Plated Jam Nut ANSI B18.2.2
Grade 8 zinc plated jam nut ANSI B18.2.2 is a high-strength low-profile fastening component designed for applications requiring reduced installation space, reliable thread engagement, and improved corrosion protection. The grade 8 zinc plated jam nut ANSI B18.2.2 is manufactured from high-strength carbon steel and finished with zinc plating, providing enhanced surface protection and stable mechanical performance.
The grade 8 zinc plated jam nut ANSI B18.2.2 is widely used in automotive systems, machinery, industrial equipment, construction applications, and OEM assemblies where inch standard thin nuts are required for locking, adjustment, or space-limited fastening.

Product Overview
The grade 8 zinc plated jam nut ANSI B18.2.2 is a low-profile hex nut manufactured according to ANSI B18.2.2 dimensional requirements. Compared with standard hex nuts, a jam nut has a reduced height, allowing installation in areas where available space is limited.
Jam nuts are commonly used together with standard nuts to create a locking arrangement. When tightened against another nut, the thinner profile helps maintain the position of threaded components and improves resistance against loosening.
The grade 8 zinc plated jam nut ANSI B18.2.2 combines high-strength carbon steel performance with zinc surface protection, making it suitable for general industrial environments requiring durable inch-system fastening components.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Grade 8 Zinc Plated Jam Nut |
| Standard | ANSI B18.2.2 |
| Material | Carbon Steel |
| Strength Grade | Grade 8 |
| Nut Type | Jam Nut / Thin Hex Nut |
| Thread Standard | Inch Thread (UNC / UNF) |
| Size Range | According to ANSI B18.2.2 |
| Thread Direction | Right Hand |
| Surface Finish | Zinc Plated |
| Nut Profile | Low Height Design |
| Application | Locking and Adjustment Fastening |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, coating, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | Carbon Steel |
| Strength Grade | Grade 8 |
| Tensile Performance | According to SAE Grade 8 Requirement |
| Proof Load | According to Grade 8 Specification |
| Hardness | Controlled According to Standard |
| Density | Approx. 7.85 g/cm³ |
| Surface Treatment | Zinc Plating |
| Corrosion Resistance | Improved by Zinc Coating |
| Manufacturing Standard | ANSI B18.2.2 |
Materials and Manufacturing Process
The grade 8 zinc plated jam nut ANSI B18.2.2 is manufactured through precision forming, threading, heat treatment, and surface finishing processes.
- Raw material selection: High-quality carbon steel suitable for grade 8 performance
- Material inspection: Chemical composition analysis and certificate verification
- Nut forming: Cold forging process for dimensional consistency
- Thread processing: Precision inch internal thread tapping
- Heat treatment: Improves strength and mechanical stability
- Surface preparation: Cleaning before plating
- Zinc plating: Provides corrosion protection and improved surface appearance
- Inspection: Thread gauge testing, dimensional inspection, hardness testing, and coating thickness inspection
- Packaging: Protective industrial packaging for transportation
Each grade 8 zinc plated jam nut ANSI B18.2.2 is produced under strict quality control to ensure reliable fastening performance.
Applications of the Product
The grade 8 zinc plated jam nut ANSI B18.2.2 is suitable for industries requiring compact and high-strength fastening solutions:
- Automotive industry: Steering systems, mechanical adjustment parts, and vehicle assemblies
- Machinery manufacturing: Equipment adjustment mechanisms and threaded connections
- Construction equipment: Heavy-duty mechanical components
- Industrial equipment: Compact fastening systems
- Agricultural machinery: Moving components and equipment assemblies
- Electrical equipment: Mounting and support structures
- OEM manufacturing: Customized mechanical assemblies
- General industrial applications: Space-limited fastening solutions
Its low-profile design provides flexibility where standard nuts cannot be used.
Why Choose This Product
- Grade 8 high-strength carbon steel material
- ANSI B18.2.2 inch standard compatibility
- Low-profile design saves installation space
- Zinc coating improves corrosion resistance
- Suitable for locking and adjustment applications
- Stable thread accuracy
- Reliable mechanical performance
- OEM customization support
The grade 8 zinc plated jam nut ANSI B18.2.2 provides a practical solution for applications requiring strength and compact fastening design.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Experience with inch standard fastener manufacturing
- Support for ANSI and ASME standard products
- Advanced forging and thread processing capability
- Professional zinc plating management
- OEM/ODM customization support
- Stable bulk production capability
- Global export experience
- Engineering support for customized fastening requirements
Flybear provides reliable fastening products for automotive, machinery, construction, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Carbon steel chemical composition analysis
- Raw material certificate verification
- Thread gauge inspection
- Dimensional accuracy inspection
- Hardness testing
- Zinc coating thickness inspection
- Surface appearance inspection
- Packaging inspection
All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a grade 8 zinc plated jam nut ANSI B18.2.2, consider:
- Matching inch bolt or stud specification
- Required strength grade
- Available installation space
- Locking method requirements
- Operating environment
- Corrosion protection requirements
Correct selection ensures secure fastening and long-term connection stability.
FAQ
1. What is a Grade 8 jam nut used for?
A Grade 8 jam nut is used for compact fastening, adjustment, and locking applications requiring higher mechanical strength.
2. What is the difference between a jam nut and a standard hex nut?
A jam nut has a reduced height and is commonly used with another nut to secure threaded components.
3. What does Grade 8 mean for a carbon steel nut?
Grade 8 indicates a high-strength inch fastener classification with higher mechanical performance than lower grades.
4. Can ANSI B18.2.2 jam nuts be customized?
Yes, Flybear supports customized sizes, threads, coatings, and packaging.
5. Why use zinc plating on carbon steel jam nuts?
Zinc plating improves corrosion resistance and extends service life in general industrial environments.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




