Galvanized Carbon Steel Black Oxide Hex Bolt

1. Appearance - related Features

Uniform Coating
The black coating on these bolts is typically applied evenly across the entire surface, including the head and the shank. This uniform application not only contributes to a consistent appearance but also ensures that all parts of the bolt are equally protected.

2. Material and Mechanical Features

Corrosion Resistance
The black coating often serves as a protective layer against corrosion. In many cases, the coating is formulated with materials that can resist the effects of moisture, chemicals, and environmental factors. For example, if it is a black oxide coating, it forms a thin, adherent layer that inhibits the formation of rust, making black hexagonal bolts suitable for both indoor and outdoor applications where corrosion could be a concern.

3. Design - related Features

Standardized Hexagonal Head Design
Just like regular hexagonal bolts, black hexagonal bolts feature a six - sided head. This design allows for easy gripping with common tools like wrenches. The six - flat surface of the head provides a large contact area for torque application, enabling users to tighten the bolts firmly. The standardization of the hexagonal head size also means that they can be used interchangeably with other components and tools in accordance with industry standards.

1. Quality Management System Certification ISO 9001:2015: The company has obtained the quality management system from the International Organization for Standardization (ISO), indicating its capability to consistently provide products that meet customer and applicable statutory and regulatory requirements. IATF 1949:2016: Specifically addressing the requirements of the automotive industry, the company has received the quality management system certification from the International Automotive Task (IATF), demonstrating its professionalism and reliability in the field of automotive parts manufacturing. 2. Environmental Management System Certification ISO 140012015: The company has established an environmental management system that meets international standards, committed to reducing environmental pollution during the production process and achieving sustainable development OHSAS 18001:2007 / ISO 45001:2018: Occupational Health and Safety Management certification, ensuring a safe working environment for employees and preventing work-related accidents and diseases.

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