Alloy Steel Grade 8.8 Screws are tough, high-strength fasteners built for the toughest mechanical, automotive, and structural tasks. Made from a carefully balanced alloy steel that includes just the right amount of carbon and other elements, these screws deliver impressive tensile strength, hardness, and wear resistance. With precise threading and smooth finishes, they ensure a secure fit, reliable load transfer, and long-lasting performance. You’ll find Alloy Steel Gr 8.8 Screws in applications where safety, durability, and mechanical reliability are non-negotiable, providing trustworthy connections in machinery, construction, automotive assemblies, and industrial equipment.
Alloy Steel Gr 8.8 Screws are medium-carbon steel fasteners with high tensile strength, usually containing boron or alloying elements to increase strength. They have 0.25-0.55% Carbon, 0.30-1.60% Manganese, up to 0.60% Silicon and trace amounts of Phosphorus and Sulfur. These screws are quenching and tempering to have a minimum tensile strength of 800 MPa and yield strength of 640 MPa. Grade 8.8 screws are renowned for their reliability and strength and are used in heavy-load applications where there is a need for high mechanical performance.
| Standard | : | ASTM A194 |
| Dimension | : | DIN, ASTM, BS and all International Standards |
| Size | : | M02 to M33 |
| Materials / Grades | : | Alloy Steel HT 8.8 |
| Length | : | UPTO 5 METERS |
| Type | : | Hex Bolt/ Hex Screw, Square Head Bolt, U Bolt, Carriage Bolt, Eye Bolt, T Bolt/ J Bolt/ L bolt, Flange Bolt, Coach Screw etc. |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These screws are primarily made of iron, combined with carbon, manganese, and small amounts of elements like chromium or molybdenum to boost their mechanical properties. This unique blend gives them high tensile and yield strength, toughness, and the ability to resist deformation under load. Mechanically, they can handle significant shear and tensile forces, making them perfect for heavy-duty applications. Plus, heat treatment enhances their hardness, wear resistance, and overall strength, ensuring they perform well even in demanding conditions.
You’ll often see Alloy Steel Gr 8.8 Screws in machinery assemblies, automotive manufacturing, construction frameworks, and industrial equipment. They’re perfect for securing metal, wood, or composite materials in situations that require strong, reliable fastening. Thanks to their durability, resistance to mechanical stress, and long-term performance, Alloy Steel Gr 8.8 Screws are the go-to choice for critical fastening solutions where safety and reliability are key.
Chetak Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hyderabad, India.
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