Metric Size Grade 8.8 Hex Head Cap Screw
Metric Size Grade 8.8 Hex Head Cap Screws: Reliable Strength and Precision for Global Engineering Standards
The Metric Size Grade 8.8 Hex Head Cap Screw is a high-strength fastener engineered to meet the rigorous demands of industrial, automotive, and construction applications. Designed in accordance with ISO 898-1 and DIN 933/931 standards, these metric-grade screws deliver exceptional performance, durability, and precision fastening under heavy loads and dynamic conditions.
Manufactured from medium carbon steel and quenched and tempered for added strength, Grade 8.8 hex head cap screws feature a tensile strength of 800 MPa (approximately 116,000 psi) and a yield strength of 640 MPa (around 92,000 psi). This balance of strength and ductility makes them ideal for machinery, engines, equipment assemblies, and structural applications where consistent torque and secure fastening are essential.
The hexagonal head design allows for efficient torque transfer, enabling reliable tightening and easy removal during maintenance. These fasteners are available in coarse and fine thread pitches, ensuring compatibility with a wide range of metric nuts and components.
To withstand environmental exposure and corrosion, Grade 8.8 screws are offered in plain, zinc-plated, or black oxide finishes, providing both aesthetic and protective advantages. Whether used in precision assemblies or heavy-duty installations, these fasteners maintain superior mechanical integrity and resistance to wear.
Key Features:
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Manufactured to ISO 898-1 and DIN 933/931 standards
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Made from quenched and tempered medium carbon steel
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Tensile strength: 800 MPa / Yield strength: 640 MPa
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Hex head design ensures easy wrenching and precise torque control
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Available in zinc-plated, black oxide, or plain finishes
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Ideal for machinery, construction, and automotive applications
For durable, high-performance fastening that meets international standards, the Metric Size Grade 8.8 Hex Head Cap Screw delivers dependable strength, consistency, and global compatibility you can trust.