Metric 10.9 Hex Head Cap Screw with Clear Zinc Finish
Metric Hex Head Cap Screws Grade 10.9 with Zinc Cr3 Plating
Metric Hex Head Cap Screws Grade 10.9 with Zinc Cr3 plating are engineered for high-strength fastening in demanding industrial and mechanical applications. Designed to handle extreme loads while maintaining precision and durability, these fasteners are a trusted choice in environments where performance, safety, and long service life are critical.
High-Strength Mechanical Performance
The Grade 10.9 classification indicates exceptional strength characteristics. The “10” represents a minimum tensile strength of 1,000 MPa, while the “9” signifies a yield strength of 900 MPa. Manufactured from quenched and tempered medium carbon alloy steel, these hex head cap screws are built to withstand heavy loads, high torque, and repeated stress without deformation. This makes them ideal for high-stress assemblies where consistent clamping force and reliability are essential.
Zinc Cr3 Plating for Corrosion Protection
Zinc Cr3 (trivalent chromium) plating provides an effective layer of corrosion resistance while maintaining environmental compliance. This modern coating protects the fastener from rust and oxidation in humid or mildly corrosive environments and serves as an environmentally friendly alternative to traditional hexavalent chromium coatings. The smooth, bluish-silver finish also enhances appearance and improves surface lubricity, allowing for more accurate torque application and reduced thread galling during installation.
Metric Sizing and Installation Flexibility
Metric hex head cap screws are sized by nominal diameter and length, both measured in millimeters. Common sizes include M6, M8, M10, and M12, with additional sizes available to suit a wide range of design requirements. These fasteners are available with full or partial threading and are compatible with standard metric nuts and washers. The hexagonal head design allows for efficient wrenching using standard metric tools.
Common Industries and Applications
Automotive engines, chassis, and suspension systems
Industrial machinery and equipment assembly
Construction and structural connections
Aerospace and precision engineering applications
For applications requiring high tensile strength, corrosion protection, and environmental responsibility, Metric Hex Head Cap Screws Grade 10.9 with Zinc Cr3 Plating deliver dependable performance professionals rely on worldwide.