High-Strength Socket Head Cap Screws

• Customization: Available
• Material: High Strength 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, Building
• Finish: Black
• Transport Package: Bag/Carton
• Specification: M1.6-M64
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731815
• Production Capacity: 100000/Year
• Package Size: 50.00cm * 40.00cm * 40.00cm
• Package Gross Weight: 50.000kg

Product Description

High - strength hexagon socket head cap screws are common mechanical fasteners. Here is a brief introduction:

Appearance and Structure: 

Application Fields: 

Definition and Grade: 

The head is in the shape of an inner hexagon, which is convenient for tightening and loosening with a hexagonal wrench. It is usually cylindrical, and the inner hole depth is about half of the nominal thread diameter. The size range is wide, and the thread diameter can range from very small to 75 mm or more, and the length can be up to 3600 mm.
Material and Manufacturing: They are usually made of high - strength alloy steel, such as 35VB, 20MnTiB, etc. After heat treatment processes such as quenching and tempering, their strength and toughness are improved to meet the requirements of high - strength applications.

Widely used in industrial machine tools, tooling molds, construction machinery, mining machinery, and other industrial and engineering fields. They are also commonly used in key connection nodes of vehicles and steel structures, and play a key role in ensuring the firmness and stability of the connection.

According to Chinese standards, they usually refer to hexagon socket head cap screws with a strength grade of 8.8 or above, including 10.9 - grade and 12.9 - grade ones. The performance grades of hexagon socket head cap screws for steel structure connections include more than 10 grades such as 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. Bolts with a grade of 8.8 and above are made of low - carbon alloy steel or medium - carbon steel and undergo heat treatment (quenching and tempering), which are generally called high - strength bolts.

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.