Structural Nuts

Structural nuts—often called heavy hex structural nuts—are engineered for high-strength steel connections in structural and heavy construction. Compared to standard hex nuts, they’re thicker and wider across the flats, providing greater bearing area and clamp load when paired with structural bolts in steel-to-steel joints. American Bolt Corp stocks structural nuts in ASTM A563 Grade C and Grade DH materials to meet demanding jobsite and fabrication requirements.