Heavy Duty Hexagonal Nut Black Steel 1/2-13 Grade 2H

Also known as heavy hex nuts, these nuts are about 10% wider and taller than standard hex nuts and distribute the load over a large area. Grade 2H nuts are comparable in strength to Grade 9 bolts. They're about 20% stronger than high-strength steel nuts and are used in heavy machinery, such as earthmoving equipment.

Black steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.