Durable High Strength Fasteners for Heavy Duty Construction Projects

• Customization: Available
• Material: High Strength Steel
• Type: Round Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 8.8
• Application: Building
• Finish: Black
• Applicable Industries: Construction Industry
• Whether to Support Customization: Support
• Use: Standard
• Strength Level: Level a
• Transport Package: Container
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

The double headed bolt, also affectionately known as the double headed stud, is a marvel of mechanical engineering. This ingenious component features threads at both ends and a seamless smooth rod in the center, making it an indispensable element for connecting two parts with through holes. Paired with nuts, it ensures a tight and secure fit. Its versatility and reliability make it indispensable across diverse fields, including mechanical manufacturing, automotive, and aerospace industries. Below, we delve into a comprehensive overview of its features and applications from multiple perspectives:

• Structural Features

Two End Threads: At each end of the double headed bolt, meticulously crafted threads allow for seamless integration with the internal threads of nuts or the connected parts. These threads are available in various specifications tailored to meet specific usage requirements, with commonly used types being metric threads and imperial threads. This adaptability ensures that the bolt can be perfectly suited to different applications and environments.

Middle Smooth Rod: The centerpiece of the bolt boasts a polished smooth rod, devoid of threads. Its diameter is slightly smaller than the outer diameter of the threads, playing a crucial role in positioning and bearing axial tension. This ensures the connection's coaxiality and stability, thus enhancing the overall integrity of the assembly.

Working Principle: In practical usage, one end of the double headed bolt is securely screwed into the threaded hole of one connected part, becoming a steadfast fixed end. The other end traverses the through-hole of another component, followed by a washer and a firmly tightened nut. This arrangement generates axial tension, ensuring the components are tightly bound together. The friction and pre-tightening force between threads foster a dependable and robust connection, safeguarding the integrity of the assembly.

Material Selection: Choosing the right material is paramount, factoring in attributes like strength, corrosion resistance, and high temperature tolerance. Carbon steel, alloy steel, and stainless steel are popular choices. Carbon steel offers cost-effectiveness for general mechanical connections; alloy steel, with its superior strength, handles large loads with ease; and stainless steel, prized for its corrosion resistance, thrives in industries with stringent environmental demands, such as chemical and food sectors.

• Application Scenarios

Engine Assembly: In the realm of engines, whether for automobiles or ships, double headed bolts play a pivotal role in connecting the cylinder head to the cylinder block, ensuring a tight seal and preventing gas leakage, thus optimizing engine performance and safety.

Heavy Machinery Equipment: In the assembly of formidable heavy machinery, such as frames and bases, double headed bolts stand as stalwart defenders, withstanding immense loads and vibrations. Their strength and resilience are key to ensuring the stable operation of these powerful machines.

Pipeline Connection: Within the intricate pipeline systems of petroleum and chemical industries, double headed bolts expertly marry flanges together, guaranteeing not only the strength but also the critical sealing of these vital connections, thereby safeguarding the seamless flow of materials.

• Installation and Maintenance

Installation Points: Prior to installation, it is essential to ensure the cleanliness and absence of debris in threaded holes and bolts. As the fixed end is screwed in, precise torque control is vital to prevent over-tightening or loosening. During installation, maintaining the perpendicularity of bolts to connected parts is crucial to avoid unbalanced loads.

Maintenance Precautions: Regular inspection of the double headed bolts' tightness is advised to preempt any loosening. For bolts operating in harsh environments, periodic checks for corrosion are necessary, with timely replacements if needed. During disassembly, appropriate tools should be employed to protect the threads from damage, ensuring continued reliability.