Electro Galvanized Hex Socket Head Cap Screws

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: GB/T 70.1-2008
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB
• Grade: 8.8
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Blue-White Zinc Plated
• Transport Package: Bag
• Specification: M3-M64
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731815
• Production Capacity: 100000/Year
• Package Size: 60.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 50.000kg

Product Description

Electro galvanized hexagon socket head cap screws are essential fasteners widely used in various industries. These screws feature a distinct hexagonal socket in the head, allowing for precise and efficient tightening using an Allen wrench. The electro - galvanizing process, which involves depositing a zinc coating onto the screw surface through an electrochemical reaction, provides enhanced corrosion resistance, making them suitable for both indoor and many outdoor applications.

Materials:

Performance Grades:

Applications

Carbon Steel: Commonly used for general - purpose applications. It offers good strength and is cost - effective. For example, low - carbon steel is often used for 4.8 - grade screws, while medium - carbon steel can be heat - treated to achieve higher strength grades like 8.8.

4.8 Grade: These screws have a nominal tensile strength of 400 MPa and a yield ratio of 0.6, resulting in a nominal yield strength of 240 MPa. They are suitable for non - critical applications where lower strength requirements are sufficient.
8.8 Grade: With a nominal tensile strength of 800 MPa and a yield ratio of 0.8, the nominal yield strength is 640 MPa. They are more commonly used in general mechanical and industrial applications.

Mechanical Engineering: They are used in the assembly of various mechanical components, such as in engines, gearboxes, and machinery frames. Their high strength and reliable fastening ability ensure the stable operation of mechanical equipment. For example, in a car engine, high - strength 10.9 - or 12.9 - grade electro galvanized hexagon socket head cap screws are used to secure critical components like cylinder heads.

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.