Thru Hardened Heavy Split Lock Washer Yellow Zinc Cr6 Plating

Thru-Hardened Heavy Split Lock Washer with Yellow Zinc Cr6 Plating – Industrial Strength with Corrosion Protection

When high clamp loads and harsh conditions threaten joint integrity, the thru-hardened heavy split lock washer with Yellow Zinc Cr6 plating delivers the strength and durability professionals demand. Designed for structural, automotive, and heavy equipment applications, this washer combines superior mechanical locking action with enhanced corrosion resistance for long-term performance.

Engineered for Extreme Mechanical Loads

Full Thru-Hardened Construction

Manufactured from premium medium carbon steel, these heavy split lock washers undergo a complete thru-hardening heat treatment process. Unlike surface-hardened alternatives, the entire washer body is hardened, providing uniform strength and resistance to crushing, embedding, and fatigue. This makes them ideal for use with high-strength fasteners including Grade 5, Grade 8, and ASTM structural bolts.

Heavy-Duty Helical Locking Design

The thicker cross-section and reinforced split design create powerful spring tension under torque. As the nut or bolt is tightened, the washer compresses and exerts continuous pressure against the mating surfaces, helping resist loosening caused by vibration, impact, and thermal cycling. Even under repeated stress, these washers maintain preload and prevent joint failure.

Yellow Zinc Cr6 Plating for Extended Service Life

The Yellow Zinc Cr6 finish provides a distinctive gold appearance while delivering excellent corrosion resistance. This chromate conversion coating protects against rust, moisture, and environmental exposure, making it suitable for indoor and moderately corrosive outdoor environments. It also pairs seamlessly with matching yellow zinc plated bolts and nuts for consistent performance and appearance.

Specifications & Standards

• Material: Medium carbon steel

• Hardening: Fully thru-hardened

• Finish: Yellow Zinc Cr6 plated

• Sizes: Fractional sizes from 1/4" to 1-1/2"

• Compliance: ASME B18.21.1 and SAE J489

For demanding assemblies requiring superior locking strength and corrosion protection, thru-hardened heavy split lock washers with Yellow Zinc Cr6 plating provide dependable, long-lasting fastening performance.