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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Material Material |
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Finish Finish |
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Nut Type Nut Type | Show |
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Locking Type Locking Type |
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Nylon Insert | Serrations |
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Distorted Thread | Flex-Top |
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Cotter Pin | Steel Insert |
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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Height Height |
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Thread Type Thread Type |
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Thread Fit Thread Fit |
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Drive Style Drive Style |
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![]() | External Hex |
Distorted Thread Type Distorted Thread Type |
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Top Lock | Center Lock |
For Cotter Pin Diameter For Cotter Pin Diameter |
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Minimum Slot Width Minimum Slot Width |
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More
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.
A nylon insert grips the bolt to resist loosening without damaging threads. These locknuts are reusable, but their holding power lessens with each use. They are suitable for fastening most machinery and equipment. 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. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | ||||||
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7/8"-9 | 1 1/4" | 63/64" | 220° | 5 | 000000000 | 00000 |
These locknuts have a nylon insert that grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. About half the strength of medium-strength steel locknuts, they're for light duty fastening applications, such as securing access panels.
Zinc-plated steel locknuts are corrosion resistant 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 | ||||||
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7/8"-9 | 1 1/4" | 63/64" | 220° | 5 | 000000000 | 00000 |
These locknuts have good chemical resistance and may be mildly magnetic. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
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7/8"-9 | 1 1/4" | 63/64" | 220° | 1 | 000000000 | 00000 |
These locknuts have excellent resistance to chemicals and salt water. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. They may be mildy magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
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7/8"-9 | 1 1/4" | 63/64" | 220° | 1 | 000000000 | 00000 |
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 | ||||||
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7/8"-9 | 1 1/4" | 15/32" | 220° | 5 | 000000000 | 00000 |
These locknuts have good chemical resistance and may be mildly magnetic. They're about half the height of standard nylon-insert locknuts. Use them in 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.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
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7/8"-9 | 1 1/4" | 15/32" | 220° | 1 | 000000000 | 00000 |
These locknuts have good chemical resistance and may be mildly magnetic. About 10% wider and taller than standard nylon-insert locknuts, they distribute the load over a large area. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
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7/8"-9 | 1 7/16" | 1 9/64" | Not Rated | 1 | 000000000 | 000000 |
These locknuts are about 10% wider and taller than standard nylon-insert locknuts and distribute the load over a large area. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. Use them in light duty fastening applications, such as securing access panels. 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. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
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7/8"-9 | 1 7/16" | 1 1/8" | 250° | 5 | 000000000 | 00000 |
An irregularly shaped thread at the top of the nut grips the bolt for a stronger hold than nylon-insert locknuts. They thread on from the bottom of the nut, allowing more threads to engage the bolt before tightening for easier installation than center-lock distorted thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. They're not reusable. Comparable in strength to Grade 8 bolts, they're about 25% stronger than medium-strength steel locknuts.
Steel locknuts without a finish are ready to be painted or finished.
Black-oxide locknuts are mildly corrosion resistant in dry environments and blend in with dark surfaces.
Zinc-plated and zinc yellow-chromate plated locknuts resist corrosion in wet environments.
Zinc-aluminum coated locknuts are more corrosion resistant in wet environments than zinc-plated and zinc yellow-chromate plated locknuts.
Cadmium-plated locknuts resist corrosion in wet environments and have good lubricity, so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Steel—Grade C | |||||
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7/8"-9 | 1 5/16" | 3/4" | 10 | 000000000 | 000000 |
Black Oxide Steel—Grade C | |||||
7/8"-9 | 1 5/16" | 3/4" | 1 | 000000000 | 0000 |
Zinc-Plated Steel—Grade C | |||||
7/8"-9 | 1 5/16" | 3/4" | 10 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Steel—Grade C | |||||
7/8"-9 | 1 5/16" | 3/4" | 1 | 000000000 | 0000 |
Zinc-Aluminum Coated Steel—Grade C | |||||
7/8"-9 | 1 5/16" | 3/4" | 1 | 000000000 | 0000 |
Cadmium-Plated Steel—Grade C | |||||
7/8"-9 | 1 5/16" | 3/4" | 10 | 000000000 | 00000 |
These locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts. They thread on from the bottom of the nut, allowing more threads to engage the bolt before tightening for easier installation than center-lock distorted thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. They're not reusable. Made from Grade 5 steel, they're suitable for fastening most machinery and equipment.
Black-oxide locknuts are mildly corrosion resistant in dry environments and blend in with dark surfaces.
Zinc-plated locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
These locknuts have an irregularly shaped thread in the middle of the nut that grips the bolt for a stronger hold than nylon-insert locknuts. Also known as reversible locknuts, they can be threaded on from either end. They're about three times stronger than low-strength steel locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. They're not reusable.
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.
Zinc-aluminum coated steel locknuts are more corrosion resistant in wet environments than zinc yellow-chromate plated steel locknuts.
For technical drawings and 3-D models, click on a part number.
These locknuts have good chemical resistance and may be mildly magnetic. They have an irregularly shaped thread in the middle of the nut that grips the bolt for a stronger hold than nylon-insert locknuts. Also known as reversible locknuts, they can be threaded on from either end. The strength of the bolt should match the strength of the nut to prevent damaging threads. They're not reusable.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
7/8"-9 | 1 5/16" | 3/4" | 1 | 000000000 | 00000 |
Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging the threads. These locknuts have equivalent strength to Grade 8 steel locknuts.
Cadmium-plated steel locknuts are corrosion resistant in wet environments. The plating adds lubricity, so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||
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7/8"-9 | 1 1/4" | 1 1/64" | 1 | 000000000 | 000000 |
About two-thirds the height of standard flex-top locknuts, use these in low-clearance applications or jam one against a hex nut to hold it in place. Threads at the top of the nut expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. These locknuts have equivalent strength to Grade 8 steel locknuts.
Cadmium-plated locknuts are corrosion resistant in wet environments. The plating adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||
---|---|---|---|---|---|
7/8"-9 | 1 1/4" | 31/64" | 1 | 000000000 | 000000 |
These locknuts are about 10% wider than standard flex-top locknuts to distribute the load over a large area. Threads at the top of the nut expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. These locknuts have equivalent strength to Grade 8 steel locknuts. A cadmium plating provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||
---|---|---|---|---|---|
7/8"-9 | 1 5/16" | 57/64" | 1 | 000000000 | 000000 |
About half the height and 10% wider than standard hex nuts, use these locknuts in low-clearance applications or jam one against an extra-wide hex nut to hold it in place. Threads at the top of the nut expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. These locknuts have equivalent strength to Grade 8 steel locknuts. A cadmium plating provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||
---|---|---|---|---|---|
7/8"-9 | 1 5/16" | 31/64" | 1 | 000000000 | 00000 |
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 | ||||||||
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7/8"-9 | 1 5/16" | 3/4" | 5/32" | 0.18" | 0.204" | 5 | 000000000 | 00000 |
These locknuts have good chemical resistance and may be mildly magnetic. Also known as castle nuts, secure them by inserting a cotter pin or safety wire through the slots in the nut 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.
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. | |
18-8 Stainless Steel | ||||||||
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7/8"-9 | 1 5/16" | 29/32" | 5/32" | 0.18" | 0.25" | 1 | 000000000 | 000000 |
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. These locknuts are 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 5 steel, they're suitable for fastening most machinery and equipment.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Each | |
Steel—Grade 5 | ||||
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7/8"-9 | 1 5/16" | 7/8" | 000000000 | 00000 |
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.
Zinc yellow-chromate plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
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 5 steel, they're suitable for fastening most machinery and equipment.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Each | |
Steel—Grade 5 | ||||
---|---|---|---|---|
7/8"-9 | 1 7/16" | 63/64" | 000000000 | 00000 |
About two-thirds the height of standard steel-insert locknuts, use these in low-clearance applications or jam one against a hex nut to hold it in place. 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 5 steel, 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. | Each | |
Steel—Grade 5 | ||||
---|---|---|---|---|
7/8"-9 | 1 5/16" | 19/32" | 000000000 | 000000 |
Serrations grip the material surface instead of the threads for easy installation and mild vibration resistance. The flange distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. About half the strength of medium-strength steel flange locknuts, use them in light duty fastening applications, such as securing access panels. Height includes the flange.
Zinc-plated steel flange locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Flange | |||||||
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Thread Size | Wd. | Ht. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||
7/8"-9 | 1 3/16" | 25/32" | 1 11/16" | 0.11" | 1 | 000000000 | 00000 |
An irregularly-shaped thread grips the bolt for a stronger hold than nylon-insert flange locknuts. They have a flange that distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. Grade G locknuts are comparable in strength to Grade 8 bolts. Height includes the flange.
For technical drawings and 3-D models, click on a part number.
Flange | |||||||
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Thread Size | Wd. | Ht. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel—Grade G | |||||||
7/8"-9 | 1 5/16" | 51/64" | 1 3/4" | 0.12" | 5 | 000000000 | 000000 |