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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Nut Type Nut Type | Show |
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Thread Type Thread Type |
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Locking Type Locking Type |
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Nylon Insert | Distorted Thread |
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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 |
Thread Direction Thread Direction |
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Thread Spacing Thread Spacing |
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Thread Fit Thread Fit |
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Drive Style Drive Style |
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![]() | External Hex |
Minimum Slot Width Minimum Slot Width |
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Distorted Thread Type Distorted Thread Type |
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![]() | Top Lock |
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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.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Steel—Grade 8 | ||||||
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1 1/2"-6 | 2 3/8" | 1 39/64" | 220° | 1 | 000000000 | 000000 |
1 1/2"-6 | 2 25/64" | 1 59/64" | 220° | 1 | 000000000 | 00000 |
Black-Oxide Steel—Grade 8 | ||||||
1 1/2"-6 | 2 13/64" | 1 39/64" | 220° | 1 | 000000000 | 00000 |
1 1/2"-6 | 2 25/64" | 1 59/64" | 220° | 1 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Steel—Grade 8 | ||||||
1 1/2"-6 | 2 13/64" | 1 39/64" | 220° | 1 | 000000000 | 00000 |
1 1/2"-6 | 2 25/64" | 1 59/64" | 220° | 1 | 000000000 | 00000 |
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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1 1/2"-6 | 2 13/64" | 1 39/64" | 220° | 1 | 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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1 1/2"-6 | 2 13/64" | 1 39/64" | 220° | 1 | 000000000 | 000000 |
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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1 1/2"-6 | 2 13/64" | 1 39/64" | 220° | 1 | 000000000 | 000000 |
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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1 1/2"-6 | 2 3/16" | 51/64" | 220° | 1 | 000000000 | 00000 |
Half the height of standard nylon-insert locknuts, use these locknuts 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. These nuts are suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut. All have a finish that resists 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—Grade 5 | ||||||
---|---|---|---|---|---|---|
1 1/2"-6 | 2 3/16" | 51/64" | 220° | 1 | 000000000 | 000000 |
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 | ||||||
---|---|---|---|---|---|---|
1 1/2"-6 | 2 3/16" | 51/64" | 220° | 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 | ||||||
---|---|---|---|---|---|---|
1 1/2"-6 | 2 3/8" | 1 59/64" | 250° | 1 | 000000000 | 000000 |
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.
Zinc-plated and zinc yellow-chromate plated locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade C | |||||
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1 1/2"-6 | 2 1/4" | 1 5/16" | 1 | 000000000 | 00000 |
Secure these 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 also known as castle nuts and slotted nuts. 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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1 1/2"-6 | 2 1/4" | 1 5/16" | 5/16" | 0.37" | 0.457" | 1 | 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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1 1/2"-6 | 2 1/4" | 1 1/2" | 1/4" | 0.37" | 0.43" | 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 | ||||
---|---|---|---|---|
1 1/2"-6 | 2 1/4" | 1 1/2" | 000000000 | 000000 |
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.
Yellow-zinc-plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
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 | ||||
---|---|---|---|---|
1 1/2"-6 | 2 1/4" | 1" | 000000000 | 000000 |