Fasteners play a critical role in modern industrial and construction applications, ensuring structural integrity and operational efficiency. Among the most versatile and widely used fasteners are Black Stud Bolts, which are designed to meet the demanding requirements of heavy-duty environments. The A193-B7/A194-2H Black Stud Bolts from Handan Yanzhao Fasteners Manufactory Co., Ltd. exemplify the perfect blend of durability, precision, and adaptability. This article explores the features, advantages, technical specifications, and applications of these high-performance fasteners, while also highlighting the company's commitment to quality and innovation.
The A193-B7/A194-2H Black Stud Bolts are fully threaded rods designed for use in a wide range of industrial and construction settings. These bolts are characterized by their continuous threading from one end to the other, making them ideal for applications requiring adjustable or removable connections. The "A193-B7" and "A194-2H" designations refer to specific material and performance standards, ensuring compliance with industry regulations and quality benchmarks.
One of the standout features of these bolts is their black finish, which provides enhanced corrosion resistance and a sleek appearance. The black coating is typically achieved through a zinc plating process, offering protection against rust and environmental degradation. This makes the A193-B7/A194-2H Black Stud Bolts suitable for both indoor and outdoor applications.

The A193-B7/A194-2H Black Stud Bolts are manufactured using high-strength alloy steel, ensuring exceptional load-bearing capacity and resistance to mechanical stress. The B7 designation indicates that these bolts are made from a specific grade of alloy steel (ASTM A193 B7), which is known for its ability to withstand high temperatures and corrosive environments. This makes them ideal for use in critical applications such as pressure vessels, heat exchangers, and flange connections.
These bolts feature a uniform thread pattern that ensures consistent engagement with nuts and threaded holes. The full-length threading eliminates the need for additional components, simplifying installation and reducing the risk of misalignment. This design is particularly beneficial in applications where precision and reliability are paramount.
The black finish of the A193-B7/A194-2H Black Stud Bolts is achieved through a zinc plating process, which provides a protective layer against rust and oxidation. This coating is especially valuable in environments exposed to moisture, chemicals, or extreme weather conditions. Additionally, the black color enhances visibility in low-light settings, improving safety during installation and maintenance.
Due to their robust construction and corrosion-resistant properties, these bolts are suitable for a wide range of industries, including construction, automotive, aerospace, and manufacturing. They are commonly used in structural assemblies, machinery, and equipment where high-strength and durability are required.

| Parameter | Specification |
|---|---|
| Material | Alloy Steel (ASTM A193 B7) |
| Finish | Zinc Plated (Black) |
| Thread Type | Unified National Coarse (UNC) |
| Length | Customizable (varies by application) |
| Thread Length | Full-Length Threading |
| Load Capacity | High-Strength (Suitable for Heavy-Duty Use) |
| Corrosion Resistance | Enhanced via Zinc Plating |
| Applications | Construction, Manufacturing, Automotive, Aerospace |
The A193-B7/A194-2H Black Stud Bolts are designed to meet the demands of diverse industries. Some common application scenarios include:

Handan Yanzhao Fasteners Manufactory Co., Ltd. is a leading manufacturer and supplier of high-quality fasteners, including Black Stud Bolts, Wire Bolts, and Zinc Plated Self-Drilling Screws. With years of experience in the industry, the company has established itself as a trusted partner for businesses seeking reliable and durable fastening solutions.
Based in Handan City, Hebei Province, China, Handan Yanzhao Fasteners leverages advanced manufacturing technologies and rigorous quality control processes to ensure that its products meet international standards. The company's commitment to innovation and customer satisfaction has enabled it to serve a global clientele, including manufacturers, contractors, and engineers across various sectors.
As a Wire Bolts Supplier and Exporter, the company offers a comprehensive range of fasteners tailored to the specific needs of its clients. Its product portfolio includes not only A193-B7/A194-2H Black Stud Bolts but also other specialized fasteners designed for high-stress environments.
There are several reasons why Handan Yanzhao Fasteners Manufactory Co., Ltd. stands out in the fastener industry:
The A193-B7/A194-2H Black Stud Bolts are manufactured in compliance with international standards such as ASTM A193 and ASME B16.5. These standards ensure that the bolts meet the required mechanical properties, dimensional tolerances, and performance criteria for their intended applications.
Additionally, Handan Yanzhao Fasteners Manufactory Co., Ltd. holds certifications such as ISO 9001, which attests to its commitment to quality management and continuous improvement. These certifications provide customers with confidence in the reliability and consistency of the products.
As part of its corporate responsibility, Handan Yanzhao Fasteners prioritizes environmental sustainability and workplace safety. The company implements eco-friendly manufacturing processes, including energy-efficient production methods and waste reduction initiatives. Furthermore, the A193-B7/A194-2H Black Stud Bolts are designed to minimize environmental impact through their long service life and reduced need for replacement.
In terms of safety, the bolts are engineered to withstand extreme conditions, reducing the risk of failure in critical applications. This aligns with the principles outlined by organizations such as the National Institute of Standards and Technology (NIST), which emphasizes the importance of reliable materials in industrial and construction settings.
The importance of high-quality fasteners in industrial applications is underscored by the work of the National Institute of Standards and Technology (NIST). According to NIST, "Precise measurements and standardized materials are essential for ensuring the safety and efficiency of critical infrastructure and industrial systems" (NIST, 2025). The A193-B7/A194-2H Black Stud Bolts exemplify this principle by meeting rigorous performance standards and contributing to the reliability of industrial structures.
For further information on NIST's role in advancing technological standards, visit https://www.nist.gov.
The A193-B7/A194-2H Black Stud Bolts from Handan Yanzhao Fasteners Manufactory Co., Ltd. are a testament to the company's dedication to producing high-quality, durable fasteners. With their robust design, corrosion-resistant finish, and compliance with industry standards, these bolts are an excellent choice for a wide range of applications. Whether you're working on a construction project, manufacturing equipment, or aerospace systems, the A193-B7/A194-2H Black Stud Bolts offer the strength and reliability needed to ensure long-term performance.