System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Material Material |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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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 |
Thread Spacing Thread Spacing |
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Thread Direction Thread Direction |
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Thread Fit Thread Fit |
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Drive Style Drive Style |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Threading Threading |
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![]() | Fully Threaded |
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Locking Type Locking Type |
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Nylon Insert | Cotter Pin |
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Steel Insert |
Coupling Nut Profile Coupling Nut Profile |
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For Cotter Pin Diameter For Cotter Pin Diameter |
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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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—Grade 5 | ||||||
---|---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 1 1/2" | ASME B18.2.2 | 1 | 000000000 | 000000 |
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.
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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—Grade 2 | ||||||
---|---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 1 1/2" | ASME B18.2.2 | 1 | 000000000 | 000000 |
18-8 Stainless Steel Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.
Black-oxide stainless steel nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
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.
Black-oxide stainless steel nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
Low-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. About half the strength of medium-strength steel thin nuts, use them for light duty fastening applications, such as securing access panels. Some of these screws meet ISO and DIN dimensional standards.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
---|---|---|---|---|---|---|
Size | Spacing | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Steel—Grade 2 | ||||||
1 3/4"-5 | Coarse | 2 5/8" | 31/32" | 1 | 000000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—Grade 8 | ||||||
---|---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 31/32" | ASME B18.2.2 | 1 | 000000000 | 000000 |
18-8 Stainless Steel Thin Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they 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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 31/32" | 1 | 000000000 | 000000 |
Super-Corrosion-Resistant 316 Stainless Steel Thin Hex Nuts

These nuts have excellent chemical resistance and can be used in saltwater environments. Also known as jam nuts, they 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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 31/32" | 1 | 000000000 | 000000 |
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 3/4"-5 | 2 3/4" | 1 23/32" | 1 | 000000000 | 000000 |
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.
Nuts that meet ASME B18.2.2 comply with standards for dimensions.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||
---|---|---|---|---|---|---|
1 3/4"-5 | 2 3/4" | 1 23/32" | ASME B18.2.2 | 1 | 000000000 | 00000 |
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 3/4"-5 | 2 3/4" | 1 23/32" | 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 3/4"-5 | 2 3/4" | 1 23/32" | 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 3/4"-5 | 2 3/4" | 1 23/32" | 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 3/4"-5 | 2 3/4" | 31/32" | ASME B18.2.2 | 1 | 000000000 | 000000 |
Low-Strength Steel Extra-Wide Thin Hex Nuts


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 against another extra-wide hex nut to hold it in place. Made from low-strength steel, use them in light duty fastening applications, such as securing access panels.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Steel—Grade 2 | |||||
---|---|---|---|---|---|
1 3/4"-5 | 2 3/4" | 31/32" | 1 | 000000000 | 00000 |
Stainless Steel Extra-Wide Thin Hex Nuts


Made from 18-8 stainless steel, these nuts have good chemical resistance and may be mildly magnetic. Also known as heavy jam nuts, they 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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1 3/4"-5 | 2 3/4" | 31/32" | 1 | 000000000 | 000000 |
High-Strength Steel Nylon-Insert Locknuts—Grade 8



A nylon insert grips the bolt to resist loosening without damaging threads. These nuts are reusable, but their holding power lessens with each use. Made from Grade 8 steel, they're about 25% stronger than medium-strength steel locknuts.
Steel locknuts without a finish are ready to be painted or finished.
Black-oxide steel locknuts have a dark surface color and are mildly corrosion resistant in dry environments.
Zinc yellow-chromate plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Low-Strength Steel Locknuts for use with Cotter Pins


Secure these hex slotted nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance. They’re not recommended for use on parts exposed to high vibration because the pin is prone to shearing under prolonged stress. Height includes the slots. Cotter pins are not included. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | For Cotter Pin Dia. | Min. Slot Wd. | Min. Slot Dp. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
1 3/4"-5 | 2 5/8" | 1 1/2" | 3/8" | 0.43" | 0.44" | 1 | 000000000 | 000000 |
High-Strength Steel Extra-Wide Steel-Insert
Locknuts for Extreme Vibration—Grade 8

These locknuts are about 10% wider and taller than standard steel-insert locknuts. They distribute the load over a large area. When installed, the steel insert grips the threads and lifts away from the nut body, isolating the insert from the nut’s load to resist spinoff caused by vibration. They're often used in shakers and vibrating equipment. The strength of the bolt should match the strength of the nut to prevent damaging threads. Made from Grade 8 steel, they're about 25% stronger than medium-strength steel locknuts.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Each | |
Steel—Grade 8 | ||||
---|---|---|---|---|
1 3/4"-5 | 2 3/4" | 2 1/32" | 000000000 | 0000000 |
Low-Strength Steel Coupling Nuts

Also known as extension nuts, use these to connect and extend threaded rods. They're about half the strength of medium-strength steel coupling nuts for use in light duty fastening applications.
Zinc-plated steel coupling nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Each | |||||
---|---|---|---|---|---|
Thread Size | Lg. | Wd. | 1-9 | 10-Up | |
Zinc-Plated Steel | |||||
1 3/4"-5 | 5" | 2 3/8" | 000000000 | 000000 | 000000 |
18-8 Stainless Steel Coupling Nuts

These coupling nuts have good chemical resistance and may be mildly magnetic. Also known as extension nuts, use them to connect and extend threaded rods.
For technical drawings and 3-D models, click on a part number.
Each | |||||
---|---|---|---|---|---|
Thread Size | Lg. | Wd. | 1-9 | 10-Up | |
18-8 Stainless Steel | |||||
1 3/4"-5 | 5 1/4" | 2 3/4" | 000000000 | 0000000 | 0000000 |
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 | ||||||
---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Threading | 1-9 | 10-Up | |
Steel | ||||||
1 3/4"-5 | 8 1/2" | 2 3/4" | Partially Threaded | 000000000 | 0000000 | 000000 |