Metric 8.8 Hex Head Cap Screw with Clear Zinc Cr3 Plating

Metric Hex Head Cap Screws, Grade 8.8 with Clear Cr3 Zinc Plating

The Metric Hex Head Cap Screw Grade 8.8 with Clear Cr3 Zinc Plating combines high tensile strength with effective corrosion protection, making it a preferred fastener for industrial, mechanical, and structural applications. Produced from medium carbon steel, these screws are quenched and tempered to meet ISO 898-1, DIN 933, and DIN 931 standards, delivering a tensile strength of 830 MPa and a yield strength of 640 MPa—ensuring exceptional performance in high-stress environments.

The hexagonal head allows for easy installation using standard metric tools, providing even load distribution and dependable torque control. The Clear Cr3 Zinc plating offers a bright, silvery appearance while forming a protective barrier against oxidation and corrosion. Unlike older hexavalent Cr6 coatings, trivalent Cr3 zinc plating provides environmentally friendly corrosion resistance and excellent surface lubricity—ideal for assemblies exposed to moisture, humidity, or chemical atmospheres.

Commonly used in automotive manufacturing, agricultural machinery, equipment fabrication, and heavy-duty maintenance, these screws provide a clean professional finish while maintaining dimensional accuracy and consistent thread quality. The plated surface also improves thread engagement, reduces galling, and allows for smoother assembly and disassembly cycles.

Available in metric diameters from M5 through M36, with coarse or fine thread options, these Grade 8.8 hex cap screws can be paired with Class 8 or 10 hex nuts and hardened flat washers for maximum joint integrity. Proudly manufactured to international standards, the Metric Grade 8.8 Hex Head Cap Screw with Clear Cr3 Zinc Plating delivers the perfect balance of strength, corrosion protection, and professional appearance—an ideal choice for precision-driven industries that demand both mechanical reliability and long-lasting finish quality.