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Hex Nut Profile Hex Nut Profile |
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Standard | Thin |
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Extra Wide | Extra-Wide Thin |
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Drive Style Drive Style |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Locking Type Locking Type |
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Threading Threading |
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Coupling Nut Profile Coupling Nut Profile |
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About Nuts, Materials, and Finishes
More
Medium-Strength Steel Hex Nuts—Grade 5

These nuts are suitable for fastening most machinery and equipment.
Zinc-plated steel nuts resist corrosion in wet environments.
Black-oxide steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
High-Strength Steel Hex Nuts—Grade 8

These nuts are about 25% stronger than medium-strength steel nuts.
Zinc yellow-chromate-plated steel nuts resist corrosion in wet environments.
Zinc-flake-coated steel nuts are more corrosion resistant in wet environments than zinc-plated steel nuts. They're also known as ultra coat and armor coat nuts.
Black-oxide steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Low-Strength Steel Hex Nuts

About half the strength of medium-strength steel nuts, these nuts are for light duty fastening applications, such as securing access panels.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 1/16" | 1 11/64" | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Hex Nuts

These nuts have excellent chemical resistance and can be used in saltwater environments. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 1/16" | 1 11/64" | 1 | 000000000 | 00000 |
Medium-Strength Steel Thin Hex Nuts

Also known as jam nuts, these are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. They're suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | ||||||
---|---|---|---|---|---|---|
1 3/8"-6 | 2 1/16" | 25/32" | ASME B18.2.2 | 1 | 000000000 | 000000 |
High-Strength Steel Thin Hex Nuts—Grade 8

Also known as jam nuts, these are about half the height of standard hex nuts. Use in low-clearance applications or jam one against a standard hex nut to hold it in place. They're about 25% stronger than medium-strength steel thin hex nuts.
Zinc yellow-chromate-plated steel nuts are more corrosion resistant in wet environments than zinc-plated steel nuts.
For technical drawings and 3-D models, click on a part number.
Extreme-Strength Steel Extra-Wide Hex Nuts—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 earth-moving equipment.
Hot-dipped galvanized steel nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
Medium-Strength Steel Extra-Wide Hex Nuts—Grade 5


About 10% wider and taller than standard hex nuts, these nuts distribute the load over a large area. They're also known as heavy hex nuts. Medium-strength steel nuts are suitable for fastening most machinery and equipment.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Steel—Grade 5 | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 3/16" | 1 11/32" | 1 | 000000000 | 00000 |
Low-Strength Steel Extra-Wide Hex Nuts


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. They're about half the strength of medium-strength steel nuts and used for light duty fastening applications, such as securing access panels.
Zinc-plated steel nuts resist corrosion in wet environments.
Nuts that meet ASME B18.2.2 comply with standards for dimensions.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Extra-Wide Hex Nuts


These nuts have good chemical resistance and may be mildly magnetic. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 3/16" | 1 11/32" | 1 | 000000000 | 000000 |
Super-Corrosion-Resistant 316 Stainless Steel Extra-Wide Hex Nuts


These nuts have excellent chemical resistance and can be used in saltwater environments. Also known as 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.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 3/16" | 1 11/32" | 1 | 000000000 | 000000 |
Brass Extra-Wide Hex Nuts


Made from brass, these nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||
---|---|---|---|---|---|
1 3/8"-6 | 2 3/16" | 1 11/32" | 1 | 000000000 | 000000 |
Extreme-Strength Steel Extra-Wide Thin Hex Nuts—Grade 2H


Also known as heavy jam nuts, these are about half the height and 10% wider than standard hex nuts. Use them in low-clearance applications or jam one against another extra-wide hex nut to hold it in place. They're often used in conjunction with an extra-wide hex nut to fasten Grade 9 bolts in heavy machinery, such as earth-moving equipment.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—ASTM Grade 2H | ||||||
---|---|---|---|---|---|---|
1 3/8"-6 | 2 3/16" | 25/32" | ASME B18.2.2 | 1 | 000000000 | 00000 |
Low-Strength Steel Thin Nylon-Insert Locknuts

These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
Zinc-plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
---|---|---|---|---|---|---|
1 3/8"-6 | 2" | 51/64" | 220° | 1 | 000000000 | 00000 |
Steel Extra-Long Coupling Nuts

Also known as sleeve nuts, these are at least twice the length of standard coupling nuts to provide more room to connect and extend long lengths of threaded rods.
For technical drawings and 3-D models, click on a part number.
Each | ||||||
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Thread Size | Lg. | Wd. | Threading | 1-9 | 10-Up | |
Steel | ||||||
1 3/8"-6 | 8" | 2 1/4" | Partially Threaded | 000000000 | 000000 | 000000 |