Premium Black Hexagon Socket Screws for Heavy Duty Fastening Connections

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: 1-1
• Groove: Hexagon
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 8.8
• Surface Treatment: Black
• Use: Fastening Connection
• Thread Type: Half Thread, Full Thread
• Applicable Industries: Construction, Manufacturing
• Transport Package: Container
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

High-strength black hexagonal cylindrical screws are pivotal fasteners, seamlessly integrated into diverse fields including mechanical equipment, furniture, electronic devices, and automobiles. Below is an in-depth exploration of this exceptional screw type:

1. Characteristics

1. High Strength: These high-strength black hexagonal cylindrical screws are meticulously crafted from superior low-carbon alloy steel or medium carbon steel. They undergo rigorous heat treatment processes like quenching and tempering, culminating in exceptional strength grades. Commonly found in grades 8.8, 10.9, and 12.9, with 12.9 representing the pinnacle of strength.

2. Corrosion Resistance: A sophisticated blackening treatment is applied to the screw's surface, resulting in a robust oxide film that significantly enhances its corrosion resistance. This allows for long-term use even in challenging environments.

3. Inner Hexagon Design: The unique inner hexagon screw head design is perfect for efficient tightening or loosening using an inner hexagon wrench or electric tool, significantly boosting work efficiency.

4. Cylindrical Head Design: The sleek cylindrical head design allows for utilization in tight spaces without compromising the aesthetics of the installation surface.

2. Specification and Model

Available in a range of specifications and models, these high-strength black hexagonal cylindrical screws cater to diverse applications. Common sizes include M2 to M12, with lengths varying from a few millimeters to several tens of millimeters. Additionally, bespoke specifications and models can be tailored to the customer's specific requirements.

3. Application Scenarios

1. Mechanical Equipment: These screws are indispensable in the assembly and maintenance of mechanical equipment like cars, motorcycles, bicycles, and machine tools, guaranteeing the stability and safety of such equipment.

2. Furniture Manufacturing: Widely used in assembling furniture such as chairs, beds, and tables, these hexagonal socket head screws enhance the structural integrity and durability of furniture pieces.

3. Electronic Devices: In the assembly of compact electronic devices like computers, mobile phones, and televisions, these screws provide reliable connections while occupying minimal space.

4. Construction Engineering: Essential for construction engineering projects, these screws are used to secure large mechanical equipment like steel structures and bridges, ensuring structural stability and safety.

4. Precautions

1. Appropriate Strength Grade: Select the appropriate strength grade based on the specific application and stress requirements to prevent inadequate strength or resource wastage.

2. Correct Tightening Torque: Utilize the correct tools to apply the appropriate tightening torque, avoiding issues associated with over-tightening or insufficient tightening.

3. Anti-Loosening Measures: For scenarios demanding anti-loosening, consider incorporating spring washers or applying anti-loosening adhesives to enhance screw stability.

5. Price and Purchasing Advice

Screw pricing is influenced by specifications, models, materials, and purchase quantities. Generally, screws with larger specifications, higher strength grades, and superior materials command higher prices. It is advisable to purchase from reputable hardware stores, e-commerce platforms, or trusted brand websites to ensure premium quality and reliable after-sales service. Choose specifications and models tailored to your precise needs for optimal performance.