[5 PKG] Heavy Hex Nuts Grade 2H Steel HDG ASTM A563 2-4 1/2

Heavy Hex Nuts Grade 2H Steel HDG ASTM A563 2-4 1/2 are engineered fasteners designed for demanding structural and industrial applications. Crafted from Grade 2H steel and finished with hot-dip galvanizing (HDG), these nuts deliver exceptional strength and superior corrosion resistance in outdoor and challenging environments.

• Material: Grade 2H steel
• Finish: Hot-dip galvanized (HDG) coating for long-lasting protection against corrosion
• Standards: Meets ASTM A563 specification for heavy hex nuts
• Size range: 2 – 4 1/2 (heavy hex nut sizing)
• Applications: Ideal for structural connections, machinery, and outdoor hardware assemblies

Designed for reliable performance, these nuts offer a larger wrenching surface and improved torque tolerance compared with standard hex nuts, making them a preferred choice for high-strength bolted joints. The HDG finish helps resist moisture, chemicals, and environmental exposure to extend service life in harsh settings.

Pair with appropriate bolts and washers to create secure, durable assemblies. Add Heavy Hex Nuts Grade 2H Steel HDG ASTM A563 2-4 1/2 to your hardware kit today and enjoy dependable fastening solutions backed by quality standards.