Black Plated Unequal-Length Stud Bolt

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: GB/T 897
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB
• Grade: 8.8
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Black
• Transport Package: Bag
• Specification: M5-M48
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731815
• Production Capacity: 200000/Year
• Package Size: 50.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Black - zinc - plated unequal - length double - end studs are fasteners with distinct structural features.

General Structure and Design

Material and Surface Treatment

Applications

Black - zinc - plated unequal - length double - end studs are fasteners with distinct structural features. As the name implies, they have threads at both ends, and the lengths of these two threaded parts are different. This unequal - length design is engineered to meet specific assembly requirements. For example, in some machinery with components of varying thicknesses, one longer threaded end can be used to penetrate deeper into a thicker part, while the shorter end is used for quick connection with a thinner component. In the middle of the two threaded sections, there is a smooth shank, which not only provides additional strength during connection but also helps in centering and aligning the connected parts.

These studs are typically made from a variety of materials, with carbon steel being a common choice for general - purpose applications due to its relatively low cost and good mechanical properties. Alloy steel is used when higher strength and better resistance to wear and fatigue are required, such as in automotive engines or heavy - duty machinery. Stainless steel versions are available for applications in corrosive environments, like those in the chemical or marine industries. The black - zinc - plating surface treatment is applied to enhance corrosion resistance. The zinc layer acts as a sacrificial anode, protecting the underlying metal from rust and corrosion. The black color not only adds an aesthetic touch but also provides some degree of UV resistance in outdoor applications.

These studs find extensive use across multiple industries. In the construction industry, they are used to connect steel structures, where the unequal - length design allows for flexible connection of different - sized steel members. In the automotive field, they can be found in engine assembly, connecting engine components with different thicknesses or connection depths. In the electronics industry, for equipment with heat - sinks or chassis components, black - zinc - plated unequal - length double - end studs are used to ensure secure and corrosion - resistant connections. Their ability to provide a strong and reliable connection, combined with the corrosion - resistance of the black - zinc - plating, makes them a preferred choice in various mechanical and engineering applications.

Packing & Delivery

Bag Packaging

Carton Packaging

Fasteners can be packaged in durable plastic bags, which are available in various sizes to accommodate different quantities (e.g., small batches of screws, nuts, or bolts). The bags are typically sealed by heat or with a zipper to prevent moisture, dust, and loss of contents. This method is lightweight, cost-effective, and suitable for retail sales, small shipments, or situations where easy access to the fasteners is needed. Additionally, clear plastic bags allow for quick visual identification of the products inside.

For larger quantities or bulk transportation, cartons are commonly used. These are sturdy cardboard boxes, often reinforced with corrugated layers to provide protection against impact during handling and shipping. Fasteners in cartons are usually pre-packed in bags or separated by dividers to avoid friction and damage. Cartons can be labeled with product details (e.g., type, size, quantity) and are stackable, optimizing storage and logistics efficiency. This method is ideal for industrial orders, wholesale distribution, or long-distance transportation where durability is a priority.

Company Profile

Company Name

 Hebei LING KE Metal Products Manufacturing Co.has firmly established itself as a leading force in the fastener industry, with a rich history and a commitment to excellence that spans over 10 years. Since its inception, the company has been dedicated to providing high-quality fasteners and comprehensive fastening solutions to a diverse range of industries worldwide.In recent decades, Hebei LING KE Metal Products Manufacturing Co. has expanded its footprint globally, establishing strategic partnerships and distribution centers in key regions around the world. This has allowed the company to better serve its international customer base and meet the growing demand for its products in emerging markets.