This guide provides a comprehensive overview of China DIN 933 8.8 screws, covering their specifications, applications, material properties, and quality considerations. We'll explore what makes these screws reliable and suitable for various high-strength applications. Learn how to select the right China DIN 933 8.8 screws for your projects and where to source high-quality products.
DIN 933 is a German standard that defines the specifications for hexagon head bolts. The 933 refers to the specific design and dimensions of the bolt. The 8.8 designation indicates the material grade and tensile strength of the bolt.
The 8.8 grade signifies a high-strength bolt. The first 8 represents the tensile strength of the bolt, which is 800 MPa (Megapascals). The second 8 indicates the yield strength, which is 640 MPa. This high strength makes China DIN 933 8.8 screws ideal for applications requiring high tensile loads.
China DIN 933 8.8 screws are typically made from medium carbon steel, often alloyed with elements like manganese, chromium, and molybdenum to enhance strength and toughness. These additives improve the overall performance, ensuring durability and resistance to wear.
Due to their high strength, China DIN 933 8.8 screws find widespread use in various industries, including:
When selecting China DIN 933 8.8 screws, it's crucial to choose a reputable supplier. Look for suppliers that provide certifications such as ISO 9001 to ensure adherence to quality management systems. A thorough inspection process is also key to verifying material properties and dimensional accuracy.
For high-quality China DIN 933 8.8 screws and other fasteners, consider Hebei Dewell Metal Products Co., LTD. They offer a wide range of fasteners, ensuring reliable performance and adherence to international standards. Their commitment to quality makes them a trustworthy partner for your fastening needs.
The 10.9 grade bolts have a higher tensile strength (1000 MPa) and yield strength (800 MPa) than 8.8 grade bolts. 10.9 bolts are suitable for even more demanding applications requiring higher load capacity.
Authentic 8.8 grade bolts will be clearly marked with 8.8 on the bolt head. Look for certifications from reputable testing agencies to ensure compliance with the DIN 933 standard.
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) |
|---|---|---|
| 8.8 | 800 | 640 |
| 10.9 | 1000 | 830 |
Note: Data sourced from various fastener industry standards and manufacturer specifications.
