

This all metal self locking hex nut is designed for applications where vibration resistance and stable thread locking are important. Unlike nylon insert lock nuts, this type relies on the metal body structure to generate locking force, making it suitable for applications that require a fully metal fastening solution.
The hex body allows easy installation with standard tools. The product is commonly used in machinery, transportation equipment, automotive parts, industrial assemblies, and general fastening systems. With multiple material and grade choices, buyers can select the most suitable option according to strength requirements, working environment, and corrosion conditions.
The available grade range includes 4.8, 8.8, 10.9, and 12.9, which gives flexibility for both general-duty and high-strength applications. The material options of carbon steel and stainless steel make this nut suitable for different usage environments, from standard industrial projects to situations that require better corrosion resistance.
The surface finishes of white zinc, yellow zinc, and HDG help improve appearance and surface protection while also supporting different project requirements.

| Item | Specification |
|---|---|
| Brand | Hotop Fasteners |
| Standard | DIN |
| Material | Carbon steel, stainless steel |
| Model / Size Listing | M6, M8, M10, M12, M16, M64 |
| Grade | Class 4.8 / 8.8 / 10.9 / 12.9 |
| Type | Self locking hex nut |
| Locking Structure | All metal prevailing torque design |
| Surface Treatment | White zinc, yellow zinc, HDG |
| Measurement System | Metric |
| Application | Heavy industry, industrial general use, automobile industry |
| Origin | Hebei, China |
| Place of Production | Handan, Hebei |
| Material | Description |
|---|---|
| Carbon Steel | Suitable for general industrial fastening, high strength, and cost-effective production |
| Stainless Steel | Suitable for applications that require better corrosion resistance and long service life |
| Grade | Typical Positioning |
| Class 4.8 | General fastening applications |
| Class 8.8 | Medium-to-high strength industrial fastening |
| Class 10.9 | High strength machinery and automotive use |
| Class 12.9 | Higher strength applications with demanding mechanical requirements |
| Surface Treatment | Description |
|---|---|
| White Zinc | Bright finish with basic corrosion protection |
| Yellow Zinc | Common industrial protective finish with a yellow tone |
| HDG | Hot dip galvanized surface for stronger corrosion resistance in demanding environments |

This all metal self locking hex nut is widely used in:
Q1: What material options are available for this lock nut?
A1: The available material options are carbon steel and stainless steel.
Q2: What grades are available?
A2: The product is available in Class 4.8, Class 8.8, Class 10.9, and Class 12.9.
Q3: What type of locking structure does it use?
A3: It uses an all metal self locking structure with prevailing torque performance.
Q4: What surface treatments are available?
A4: Available surface options include white zinc, yellow zinc, and HDG.
Q5: What standard does the product follow?
A5: It follows DIN standard specifications.
Q6: What industries is it suitable for?
A6: It is suitable for heavy industry, industrial general use, and automotive applications.
Q7: Where is the product made?
A7: The product is made in Hebei, Handan, China.
Q8: Can the packaging be customized?
A8: Yes, logo customization, packaging customization, and graphic customization are available.
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