ASTM A563 Structural Nuts (Grades A, C, DH, DH3) for A325/A490 Bolts

Ensure the integrity of your structural steel connections with ASTM A563 nuts, specifically engineered to match the high-tensile requirements of A325 and A490 structural bolts. These nuts are critical components in heavy-duty construction, providing the necessary clamping force and shear resistance for bridges, buildings, and industrial frameworks.

Material Grades and Compatibility

Available in four distinct grades to suit different environmental and load conditions: Grade A for general use, Grade C for enhanced strength, and Grades DH/DH3 for superior resistance to hydrogen embrittlement in high-strength applications. All nuts are fully compatible with F3125 A325 and A490 bolts, ensuring a precise fit and optimal performance.

Key Features

• Compliance: Manufactured to ASTM A563 standards for consistent quality and reliability.
• Finish Options: Supplied in plain (black oxide) or hot-dip galvanized finish for enhanced corrosion protection in outdoor environments.
• Structural Integrity: Heat-treated to achieve specific hardness and tensile properties required for high-load structural joints.
• Documentation: Supplied with mill test certificates and quality documentation to facilitate project compliance and inspection.

Whether for a large-scale bridge project or commercial building construction, these nuts provide the safety and durability required by Saudi construction standards. Sourced from Al Jubail, they offer a reliable supply chain for industrial contractors and procurement teams.