Fractional Sizes Heavy Hex Jam Nuts Clear Zinc Cr3 Plating
Heavy Hex Jam Nut A563 Grade A with Clear Zinc Cr3 Plating
The Heavy Hex Jam Nut A563 Grade A with clear Zinc Cr3 plating is a high-strength fastening solution engineered for durability, corrosion resistance, and dependable locking performance. Designed for demanding industrial, construction, automotive, and mechanical applications, this heavy-duty jam nut helps secure bolts and fasteners in environments where vibration, load, and mechanical stress are common. The addition of clear Zinc Cr3 plating enhances service life while maintaining a clean, professional appearance.
What Is a Heavy Hex Jam Nut A563 Grade A?
Heavy Hex Design for Maximum Strength
A heavy hex jam nut features a thicker profile and wider bearing surface than standard jam nuts. This design improves load distribution and allows for higher torque during installation. When tightened against a primary nut, the jam nut creates friction that resists loosening caused by vibration or movement, making it ideal for high-stress assemblies.
A563 Grade A Specification
The A563 Grade A designation ensures the nut meets strict mechanical and material standards for strength and performance. Manufactured from high-quality steel, these jam nuts provide excellent tensile strength and resistance to deformation in heavy-duty applications.
Clear Zinc Cr3 Plating Benefits
Corrosion Resistance and Environmental Compliance
Clear Zinc Cr3 (trivalent chromium) plating provides effective protection against rust and oxidation. Compared to traditional zinc finishes, Cr3 plating offers improved corrosion resistance while meeting modern environmental and safety standards. The finish delivers a smooth, non-reflective appearance suitable for visible installations.
Extended Service Life
The Zinc Cr3 coating forms a protective barrier that helps shield the nut from moisture, humidity, and mild chemical exposure, making it suitable for both indoor and outdoor use.
Sizes and Thread Compatibility
Heavy Hex Jam Nuts A563 Grade A with clear Zinc Cr3 plating are available in a wide range of sizes. Common Fractional sizes include 1/4", 3/8", and 1/2", with additional options available. Both metric and imperial thread styles ensure compatibility with a broad range of fasteners.
Common Applications
Industrial and Structural Use
These jam nuts are widely used in construction hardware, industrial machinery, automotive assemblies, HVAC systems, and electrical enclosures. Their combination of strength, locking performance, and corrosion resistance makes them a reliable choice for demanding environments.
Dependable Heavy-Duty Fastening
The Heavy Hex Jam Nut A563 Grade A with clear Zinc Cr3 plating delivers secure, long-lasting fastening performance. Its robust construction and corrosion-resistant finish make it a trusted solution for high-strength industrial applications.