Metric Hex Head Cap Screws Grade 8.8 with Clear Cr3 Zinc Plating
Metric Hex Head Cap Screws Grade 8.8 with Clear Cr3 zinc plating are engineered to deliver reliable strength, corrosion resistance, and precision fastening for demanding industrial applications. Designed to meet international engineering standards, these fasteners are widely used in automotive, machinery, construction, and equipment manufacturing where performance and durability are critical.
High-Strength Construction to Global Standards
Manufactured from quenched and tempered medium carbon steel, Grade 8.8 hex head cap screws comply with ISO 898-1, DIN 933, and DIN 931 specifications. They provide a minimum tensile strength of 830 MPa and a yield strength of 640 MPa, offering an ideal balance of strength and toughness. This makes them well suited for assemblies subjected to vibration, dynamic loads, and repeated stress while maintaining dependable clamping force.
Clear Cr3 Zinc Plating for Corrosion Protection
The Clear Cr3 zinc plating adds a thin, uniform protective layer that resists rust and oxidation in moist, humid, or mildly corrosive environments. This trivalent chromium (Cr3) finish is an environmentally responsible alternative to traditional hexavalent chromium coatings and delivers improved compliance with modern environmental regulations. The bright, silvery appearance enhances the professional look of finished assemblies while providing smooth surface lubricity for consistent torque application and reduced thread galling.
Precision Design and Metric Compatibility
The six-sided hex head allows for efficient installation using standard metric wrenches or sockets, ensuring accurate torque control and even load distribution. Metric Grade 8.8 hex head cap screws are available in both coarse and fine thread pitches, offering flexibility to match a wide range of nuts, tapped holes, and mating components.
Size Range and Application Versatility
Available in metric diameters from M5 through M36, these fasteners accommodate a broad spectrum of design requirements. When paired with Class 8 or Class 10 hex nuts and hardened flat washers, they create strong, vibration-resistant joints suitable for long-term service.
Common Applications for Grade 8.8 Cr3 Zinc Hex Cap Screws
Automotive and agricultural equipment
Industrial machinery and fabrication
Structural and mechanical assemblies
OEM production and maintenance
For applications requiring international compliance, corrosion protection, and dependable strength, Metric Hex Head Cap Screws Grade 8.8 with Clear Cr3 Zinc Plating deliver performance professionals trust worldwide.
