Finished Hex Nuts Fractional Sizes Grade 5 Cr6 Plating
Grade 5 Hex Head Nut with Cr6 Plating
A Grade 5 Hex Head Nut with Cr6 plating is a high-strength, corrosion-resistant fastener designed for demanding automotive, industrial, and construction applications. Combining the enhanced mechanical properties of Grade 5 steel with the protective benefits of hexavalent chromium (Cr6) plating, these nuts deliver dependable performance in environments exposed to moisture, chemicals, and variable weather conditions.
Strength and Construction
Grade 5 hex head nuts are manufactured from medium-carbon steel and heat treated to achieve a tensile strength of approximately 120,000 PSI. This higher strength rating makes them well suited for moderate- to high-stress applications where standard Grade 2 nuts may not provide sufficient load capacity. The six-sided hex shape allows for easy installation and removal using standard wrenches or sockets, ensuring proper torque and a secure joint.
Cr6 Plating for Corrosion Protection
Cr6 (hexavalent chromium) plating adds a durable, corrosion-resistant layer to the nut’s surface. This finish provides excellent resistance to rust, oxidation, and wear, making it ideal for outdoor and industrial environments. Cr6 plating is especially effective in applications where fasteners are exposed to moisture, road salts, oils, or chemicals, helping extend service life and reduce maintenance.
Specifications and Sizes
Grade 5 Hex Head Nuts with Cr6 plating are available in a wide range of fractional sizes, typically from 1/4" to 1" diameter, ensuring compatibility with standard Grade 5 bolts. Internal threads are precision-cut to ensure proper engagement, consistent clamping force, and reliable performance under vibration and load.
Common Applications
Automotive and Transportation
Used in vehicle assemblies, frames, brackets, and components that require higher strength and corrosion resistance.
Construction and Structural Use
Ideal for outdoor framing, steel construction, and general building applications where durability and weather resistance are essential.
Industrial and Machinery Applications
Commonly found in equipment, machinery, and maintenance environments where fasteners must withstand stress, wear, and environmental exposure.
Reliable Performance in Harsh Conditions
The Grade 5 Hex Head Nut with Cr6 plating offers a dependable fastening solution when strength and corrosion protection are both critical. Its combination of mechanical integrity and protective finish makes it a trusted choice for professionals working in automotive, construction, industrial, and marine-influenced environments.