About 10% wider and taller than standard hex nuts, these metric-sized heavy hex nuts distribute the load over a large area. Grade 2H nuts are comparable in strength to Class 12.9 bolts. They're about 20% stronger than high-strength steel nuts and are used in heavy machinery, such as earth-moving equipment.

Fine threads are closely spaced to prevent loosening from vibration.

For technical drawings and 3-D models, click on a part number.

These nuts have good chemical resistance and may be mildly magnetic. They maintain their strength in high-pressure and high-temperature environments and are used with ASTM A193 bolts to fasten pressure tanks, valves, and flanges. About 10% wider and taller than standard hex nuts, these heavy hex nuts distribute the load over a large area.

For technical drawings and 3-D models, click on a part number.

These nuts have excellent chemical resistance and can be used in saltwater environments. They're able to maintain their strength in high-pressure and high-temperature environments and are used with ASTM A193 bolts to fasten pressure tanks, valves, and flanges. Considered heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area. Nuts may be mildly magnetic.

For technical drawings and 3-D models, click on a part number.

Able to maintain their strength in high-pressure and high-temperature environments, these nuts are used with ASTM A193 bolts to fasten pressure tanks, valves, and flanges. They are heavy nuts, so they’re about 10% wider and taller than standard hex nuts and distribute the load over a large area.

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

Zinc-plated steel nuts resist corrosion in wet environments.

For technical drawings and 3-D models, click on a part number.