Metric Size Grade 8.8 Hex Head Cap Screw
Metric Size Grade 8.8 Hex Head Cap Screws for Industrial Reliability
Metric Size Grade 8.8 Hex Head Cap Screws are engineered to deliver dependable strength, precision, and consistency for applications built around global engineering standards. Commonly used in industrial machinery, automotive systems, and structural assemblies, these fasteners provide an ideal balance of tensile strength and ductility for dynamic, load-bearing environments.
Engineered to International Standards
Manufactured in accordance with ISO 898-1 and DIN 933 / DIN 931 specifications, Grade 8.8 hex head cap screws are designed to meet strict dimensional and mechanical requirements. Produced from quenched and tempered medium carbon steel, they offer a minimum tensile strength of 800 MPa (approximately 116,000 psi) and a yield strength of 640 MPa (around 92,000 psi). This strength profile ensures reliable clamping force without sacrificing toughness or fatigue resistance.
Hex Head Design and Thread Options
The six-sided hex head allows for efficient wrench or socket engagement, supporting precise torque application and secure tightening. Metric Grade 8.8 hex head cap screws are available in both coarse and fine thread pitches, providing flexibility to match a wide range of metric nuts, tapped holes, and mating components. This versatility makes them well suited for OEM manufacturing, maintenance, and repair operations.
Finish Options for Performance and Protection
Grade 8.8 fasteners are offered in multiple finishes to suit different environments and aesthetic requirements. Zinc-plated options provide corrosion resistance for moderate exposure conditions, black oxide finishes offer a clean appearance with minimal dimensional impact, and plain finishes are ideal for controlled environments or secondary coating applications. Each finish maintains the fastener’s mechanical integrity and installation accuracy.
Common Applications Across Industries
Industrial machinery and equipment assembly
Automotive engines and drivetrain components
Structural steel and mechanical connections
Construction and infrastructure projects
OEM and precision manufacturing
Metric Size Grade 8.8 Hex Head Cap Screws deliver consistent strength, reliable performance, and international compatibility. For applications that demand precision fastening to recognized global standards, these fasteners provide the durability and confidence professionals depend on worldwide.